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S31NVYGIT LIBRARIES SMITHSONIAN NSTITUTION NOILNLILSNI saiuvugi7_llBe z (op) a —_ oy a © Zz INSTITUTION , NOIL! ° — aD } a ol WY <= Saluvuai1_t ler ‘ x x — x Bos a ES a = w INSTITUTION Lu a ) ' w } 8) } i i ee, / \ (5% / “ey ; / tice Livrard— PUBLISHED UNDER DIRECTION OF THE MASSACHUSETTS STATE BOARD OF AGRICULTURE, BY AUTHORITY OF THE LEGISLATURE. 1913. ae aM nal x APPROVED BY . THE STATE BOARD OF PUBLICATION, ¢ eS : . ' PRINTED BY WRIGHT & POTTER PRINTING COMPANY, STATE PRINTERS, BOSTON, MASSACHUSETTS. Commonwealth of Hassachusetts. Resolves of 1905, Chapter 51. A RESOLVE TO PROVIDE FOR PREPARING AND PRINTING A SPECIAL REPORT ON THE BIRDS OF THE COMMONWEALTH. Resolved, That there be allowed and paid out of the treasury of the Commonwealth a sum not exceeding three thousand dollars for prepar- ing and printing, under the direction of the state board of agriculture, in an edition of five thousand copies, a special report on the birds of the Commonwealth, economically considered, to include the facts relating to the usefulness of birds and the necessity for their protection already ascertained by the ornithologist of the state board of agriculture, to be distributed as follows : — Two copies to each free public library in the Commonwealth ; two copies to each high school, and two copies to such schools in towns which have no high school as the school committee may designate; one copy to the library of congress, and one copy to each state or territorial library in the United States; twenty-five copies to the state library ; five copies to the governor; two copies to the lieu- tenant governor and each member of the council; two copies to the secretary of the Commonwealth; two copies to the treasurer and re- ceiver general; two copies to the auditor of accounts ; twocopies to the attorney-general, and one copy to each member of the present general court applying for the same; the remainder to be distributed under the direction of the state board of agriculture. [Approved April 14, 1905. Commonwealth of Massachusetts. Resolves of 1907, Chapter 77. RESOLVE TO PROVIDE FOR PRINTING ADDITIONAL COPIES OF THE REPORT ON THE BIRDS OF THE COMMONWEALTH. Resolved, That there be allowed and paid out of the treasury of the Commonwealth, a sum not exceeding twenty-five hundred dollars for printing five thousand additional copies of the report on the birds of the Commonwealth. From the copies so printed each member and each elective officer of the general court for the year nineteen hundred and seven shall receive ten copies, and each assistant clerk of the general court, the doorkeepers, messengers and pages shall receive one copy. Copies may be sold by the secretary of the state board of agriculture at a price not less than the cost thereof, and additional copies may be printed for sale at the discretion of the secretary, the expense thereof to be paid from the receipts from such sales. Any amount received from sales shall be paid into the treasury of the Commonwealth. [Approved May 8, 1907. PREFACE TO THE FOURTH EDITION. Little need be said here of a book which in five years, and without any commercial advertising, has passed through several editions and is still in demand. This of itself is sufficient evidence that it has filled a want, and has done something to stimulate an interest in the utility of birds and the means for their protection. In revising the work for the fourth edition very few errors of statement have been found, but the nomenclature has been brought nearly abreast of present standards, and certain statistical state- ments have been modified to bring them down to date. The names of birds have been made to conform with those given in the check list of the American Ornithologists Union, third edition, revised and published in 1910; the insect names have been revised and corrected by Messrs. W. 8. Regan and A. I. Bourne, and those of plants have been made to correspond with the nomenclature of the seventh edition of Gray’s Botany, published in 1908. Some new information regarding nesting boxes and other European means of attracting birds is given in an appendix, which contains, also, a list of plants which bear fruit that is attractive to birds, giving the seasons in which the fruit is available. As the first edition was electrotyped, changes are expen- sive, and as no special appropriation was made for this edition, it was impossible to include much new matter in the text or to use many new illustrations. If the demand for the work continues, it may be advisable at some future time to reset the type, and to add much more information, which has been obtained since the first edition was pub- lished. EDWARD HOWE FORBUSH. Boston, Mass., June 2, 1913. PREFACE. In preparing and submitting this report the fact has been kept in mind that the material prosperity of the state and nation depends very largely on agricultural pursuits. An attempt has been made, therefore, to make the volume ser- viceable to both agriculturist and horticulturist. The author of this report believes, with Townend Glover, that an ac- quaintance with the useful birds of the farm is as important to the farmer as is a knowledge of the insect pests which attack his crops. Those who open this volume expecting to find within its covers a guide to the birds, a manual for the collector, or a systematic account of the birds of Massachusetts, will be disappointed, for its scope is chiefly economic. The plan of the report as outlined before the legislative committees has been followed to the letter. In undertaking the work, the author has attempted to counteract in some measure the effects of some phases of modern civilization and intensive farming which operate to destroy or drive out the birds ; and it is hoped that the book will be of some service as a source of useful information for the bird protectionist. As no report prepared with such a purpose can exert much influence unless widely read, it has been written in a popular style, with little scientific verbiage. A part of the material was prepared between the years 1891 and 1900, during the author’s experience as field di- rector for the State Board of Agriculture in the work of destroying the gipsy moth. Chapters I. and II. are partly composed of revised and rewritten portions of papers pub- lished during that time. Chapter HI. is based largely on observations made during that period by two faithful, capable workers, — Messrs. C. E. Bailey and F. H. Mosher. Owing Vi PREFACE. to Mr. Bailey’s untimely death and Mr. Mosher’s occupation in a new field, it was deemed best to publish some of the field notes of these observers with little editing, in order to avoid any possible distortion of their evidence. In presenting in Chapter I. some of the evidence, given by the earlier writers, regarding the utility of birds as protectors of crops and trees, it has been necessary to use such material as was obtainable. No carefully guarded experiments or observations in this direction were made until the latter part of the nineteenth century, and it is only recently that scien- tific investigators have been employed in this little-known field. It is not an alluring task for the scientist, in which his work brings him neither material reward, credit, nor honor. That portion of the final chapter which treats of the means of attracting birds is drawn mainly from six years’ experience at the author’s home at Wareham, Mass. The first three chapters were mainly written there. Most authors quoted or cited in these chapters are given full credit. The remaining chapters, which are largely based on the author’s own investigations and observations, were written and the proof was read while he was away from home, in the woods, or travelling from place to place, often at a distance from any ornithological library. Under such circumstances it was impossible to quote verbatim, but in most cases authors are named when facts have been gathered from their writings. The averages of the components of the food of each species are taken mainly from the publications of the Bureau of Bio- logical Survey of the United States Department of Agricul- ture, except where credit is otherwise given. Thanks are due to Dr. L. O. Howard, who has read critically that part of the introduction devoted to insects, and the author is greatly indebted to him for information ; also, more than he can tell, to Mr. William Brewster for counsel and suggestions ; and especially to Mr. J. A. Farley, who read a large part of the manuscript. The limited time at the author’s disposal has prevented such painstaking revision and abridgment of the manuscript PREFACE. vii as would be required to attain the highest literary excellence ; but both manuscript and proof were critically read by Mrs. A. Drew, whose work has added much to the appearance of the volume, and whose suggestions have been very valuable. Mr. F. H. Fowler has placed the author under great obli- gations by doing a large amount of clerical work, and giv- ing much assistance in his official position as first clerk and librarian of the State Board of Agriculture. The scientific ornithological nomenclature is that of the American Ornithologists Union. The grouping of birds according to their habitats (as birds of woodland, etc.) is based more on their food habits than on their choice of nesting sites. This classification is of necessity arbitrary, and not always consistent, for it is sometimes influenced by other considerations, such as are evident in the inclusion of the Whip-poor-will among birds of the air. The nomenclature of plants is mainly that used by Britton and Brown in their Flora of the Northern United States, Canada, and the British Possessions, except in some cases where Dr. Judd or other authors are quoted. That of insects has been derived from various sources at different times, and for this reason some of the scientific names are not the latest. In the original plan of the report no descriptions of species were included; but the suggestion was made by Mr. J. A. Farley that it would be useless to descant to a man on the usefulness of the Chickadee if he did not know the bird. The brief, untechnical descriptions of bird, nest, eggs, and bird notes, and the illustrations of the species, are all in- tended as helps to identification. The descriptions of birds are calculated merely to call attention to the principal colors and marks that serve to identify birds afield. Brief descrip- tions of haunts, habits, and manners are also given, as guides to identity. A species that is found throughout the year within the limits of the State is denominated a resident. No attempts have been made to give fixed dates of arrival and departure, for these vary somewhat in different parts of the State, as vill PREFACE. well as in different seasons; but the months in which each species is most commonly seen are given. For example, the season for the Tree Swallow is given as April to Septem- ber; but no mention is made of the fact that it sometimes appears in small numbers in March; neither is it stated that this bird has been seen in flocks in southeastern Massachu- setts in late October and even in November, for such occur- rences are unusual. It may be taken for granted that most of the insect-eating birds that arrive in March or April come in the latter part of those months, while most of those that depart for the south in September or October leave in the earlier weeks of their respective months. Our attempts to represent the songs of birds in printed syllables are not often of much assistance to the beginner, for they lack the variation, quality, and expression of bird songs, and birds do not sing in syllables. Also, the imagi- nation of the writer often greatly affects these syllabic rendi- tions, as may be seen by comparing the various sentences attributed by different people to the White-throated Sparrow. Nevertheless, some such imitations of bird songs which are now accepted and are quite generally considered helpful are given in this report; in other cases the author’s own inter- pretations of well-marked bird notes are given. The line cuts of birds, nesting boxes, appliances, etc., are mainly reproductions of the author’s pen and ink sketches and drawings. The attitudes have been caught by sketch- ing the living birds afield ; but as most of the drawings were necessarily made in winter, the measurements and the details of markings were taken mainly from bird skins. While this method does not give so good results as does the use of the dead bird, it obviates the necessity of killing birds for the pur- pose. The sketches for Figs. 19, 22, 23, and 25 were sug- gested by half-tone plates in American Ornithology. Figs. 1, 27, 53, 71, 73, 79, 109, 113-117, 142, and 143 were made from pen drawings by Lewis E. Forbush. The wood-cuts of insects were taken chiefly from Harris’s Insects Injurious to Vegetation, Flint’s Manual of Agriculture, and various papers published by Dr. A. S. Packard while serving as ento- mologist to the Massachusetts State Board of Agriculture. PREFACE. ix Mr. C. Allan Lyford has given valuable assistance in taking photographs illustrating bird feeding, nesting boxes, ete. The author is also greatly indebted to Messrs. C. A. and C. K. Reed for the use of half-tone plates from American Ornithology ; to Mr. Frank M. Chapman, the Massachusetts Commission on Fisheries and Game, Mr. A. C. Dike, and others, to whom credit is given in the text or captions, for the use of photographs, half-tone plates, or cuts; and to Messrs. William Brewster and Ralph Holman for the use of bird skins. Plates VI. and VII. are from E. A. Samuels. The credit for the publication of this volume rightly be- longs to the State Board of Agriculture, which, through its secretary, introduced and advocated the resolve providing for preparing and printing; to the Massachusetts Audubon Society, which supported the resolve before the Legislature ; to the various associations, officials, and friends who upheld the resolve; and to those members of the House and Senate who were instrumental in securing the appropriation which made possible the production of the report. For its many shortcomings the author alone is responsible. CONTENTS. PAGE INTRODUCTORY. — THE UTILITY OF BIRDS IN NATURE, . : " : 1 CHAPTER I.— THE VALUE OF BriRDs TO MAN, . j : : : 5 Pe) Primitive Man's Relations to Nature, : : 3 si i F Seo Changed Relations produced by Agriculture, . : : : : mee Man at War with Nature in the New World, . ; : : : ay ee The Increase of Insect Pests, . : ‘ , ; F , é oe Dib The Number of Insects, . : a Bi : ; : ; 3 - 28 The Reproductive Capacity of Insects, . C : P : i : 28 The Voracity of Insects, . 3 5 : fs : E : : 2 30 The Great Loss to American Agriculture by Insect Ravages, . : a eal Losses by Insect Ravages in Massachusetts, . 5 z i 5 ea OO The Capacity of Birds for destroying Pests, . 5 : : : . 40 The Digestion of Birds, . : ‘ ; , - A : . 40 The Growth of Young Birds, . “ . : 4 - 42 The Amount of Food required by Young Birds, - é cl . 44 The Time required for Assimilation of Food, . d é é - 49 The Number of Insects eaten by Young Birds in the Nest, : 5 Mail The Amount of Food eaten by Adult Birds, . é cs : 5 tM Birds save Trees and Crops from Destruction, - : é : 2263 The Increase of Injurious Insects following the Destruction of Birds, . 72 The Destruction of Injurious Mammals by Birds, . . . ‘ a ht The Value of Water-birds and Shore Birds, . ‘ ; ‘ ‘ an 480 The Commercial Value of Birds, . 4 2 ; : . é Seteil| The Msthetic, Sentimental, and Educational Value of Birds, 5 Any tela) CHAPTER II.— THE UTILITY OF BIRDS IN WOODLANDS, . s ‘ « {90 The Relations of the Bird to the Tree, . 3 6 4 a : 42 Sh The Forest Planters, é : : ‘ 4 é fA 5 5 Rene, The Influence exerted by Birds and Squirrels on the Succession of Forest Trees, é é & : ‘ a : ‘ x eae! The Tree Pruners, . ; : ; ‘ : 5 - : ; . 99 The Guardians of the Trees, . é : ; : - : ‘i LOO) CHAPTER III.— Brrps As DESTROYERS OF HAIRY CATERPILLARS AND PLANT LICE, 4 - 4 A 5 ; ; , 5 a bila) CHAPTER ITV.— THE Economic SERVICE OF BIRDS IN THE ORCHARD, . 149 CHAPTER V.—SONG BIRDS OF ORCHARD AND WOODLAND, : F 5 Es, Woodland Thrushes, , . ; 6 3 5 j 3 P >) 15d Kinglets, . : . : : : . : “ ; : : . 160 Nuthatches and Tits, : : : ‘ 5 : a : 5 . 163 xii CONTENTS. CHAPTER V.—Sonc BIRDS OF ORCHARD AND WOODLAND — Con. Creepers, . F - 0 - : - 5 a : Thrashers and Mockingbirds, . : - F : é 6 Warblers, . c . . ; ; 4 5 : 5 j Vireos, . o : 3 : 5 5 5 : : a Waxwings, 5 : : : 5 : : : . Tanagers, . . 5 : 3 c : C C 0 . Finches, Grosbeaks, and Towhees, . a 2 : Blackbirds, Grackles, Orioles, etc., . 3 : j : CHAPTER VI.—SONGLESS BIRDS OF ORCHARD AND WOODLAND, Flycatchers, . c : 4 c 5 5 ¢ “ . Hummingbirds, : : 5 0 5 : i: : 6 Woodpeckers, . : ° 5 : - : é . Cuckoos, Kingfishers, etc., Grouse, Partridges, etc., . ; . ; : CuHartTer VII.—Tue Urtiity or Birps In FIELD AND GARDEN, CHAPTER VIII.— Birps oF FIELD AND GARDEN, . A Thrushes and their Allies, 5 zi 0 ; c , 6 Wrens, : ° c 5 ; : - 3 Sparrows, . 5 : : : c : 3 4 5 : Blackbirds, Grackles, ete., : 4 . : 5 5 5 Pigeons and Doves, . 2 : 9 : : : ° Grouse, Partridges, etc., . r : : : : 6 Pheasants, C 2 ; 5 ‘ 3 . 0 : : Snipe, Sandpipers, Woodcock, etc., : 5 - . CHAPTER IX.— BIRDS OF THE AIR, . 3 : 0 Swifts, . ‘ : F : a a : . 5 2 Nighthawks, Whip-poor-wills, etc., 5 3 < 6 A Swallows, : : : - a 5 5 5 5 C CHAPTER X.— BrRDS OF MARSH AND WATERSIDE, . . : Perching Birds, 3 : 5 5 - : Rails, 5 Herons, . 3 3 , j 5 A 7 6 6 : Water-fowl, ; A : 4 5 5 3 3 CHAPTER XI.— CHECKS UPON THE INCREASE OF USEFUL BIRDs, The Destruction of Birds by Man, . : ; . - 0 The Natural Enemies of Birds, : : c 2 é Introduced Four-footed Enemies, . ; 3 : : Cats; . c : A ‘ : ; c = : : Native Four-footed Enemies, . : 6 3 ; ; 3 Squirrels, . : . a C 5 - c - Rats and Mice, . . 2 4 5 c c 2 5 Feathered Enemies, : < 5 : : é 5 “ Hawks, “ : 5 ; 5 ; ; A 4 5 Owls, . ‘ : c A - : ° ; “ 2 Crows and Jays, 4 ° . ° : : : CONTENTS. X11 CHAPTER XI.— CHECKS UPON THE INCREASE OF USEFUL BIRDS — Con. PAGE Feathered Enemies— Con. The House Sparrow, . : 4 6 . 5 . c . 370 Shrikes, . . : é 4 3 6 é 4 ' ; : o10 Other Bird Enemies, . : s : 0 ; 4 : 6 e wial Reptilian Enemies, . c . c é : : 0 é c 5 ii Fish, : : c : : 5 5 : : C c . 5 Gril CHAPTER XII.— THE PROTECTION OF BIRDS, . 5 - : ; - O12 Methods of attracting Birds, . c c c c - : : . 373 Feeding and Assembling the Winter Birds, . c c 5 5 Gilt Attracting the Summer Birds, . : . 0 : , . 384 Providing Nesting Places about Buildings, - 6 c : . 386 Bird Houses and Nesting Boxes, . . - : : : . 388 Furnishing Nesting Material, . 3 - 5 . - - . 398 Feeding the Summer Birds, ‘ c : 6 : c : - ay) Attracting Water-fowl, . - : 5 : . : . 402 The Protection of Birds against their Natural Enemies, . : : . 403 The Protection of Farm Products from Birds, . é 3 . . 410 To protect Grain from Crows and Other Birds, . - z c 5 abl To protect Small Fruits, . : : : : : : c . 412 To protect Chickens from Hawks and Crows, . c : 5 . 412 General Protective Measures, . : : : ‘ - : : - 413 Game Protection, : - : : : a : : : . 414 Measures and Legislation necessary for the Protection of Game and Birds, . : 6 : A : C : A : . 415 Artificial Propagation of Game Birds, ; 5 3 0 3 a ahlz The Movement for Bird Protection, : : ; : : : . 418 Papers on Ornithology, published by the Massachusetts State Board of Agriculture, . C : 5 . : 5 : 3 . 421 APPENDIX, . 5 é ; C : : : 5 “ - 2 533 INDEX, . s ‘ : * ‘ ; j : : % 5 é - eet FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGuRE FIGuRE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGuRE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE LIST OF ILLUSTRATIONS. 1.— The Archeopteryx, 2.— Ground Beetle, . 3.—Cutworm, . ‘ 4 : 4.— Noctuid Moth, . s ¢ 4 3 E c 5.—Fly and its Larva, . C : . 5 ° - 6. — Chestnut Beetle or Weevil, 3 5 7 > 7.— Caterpillars, the Larve of Butterflies, . A 8. — Pupze or Chrysalids, . : : c 9.— Predaceous Beetle, the Lion Beetle or Caterpillar Hunter, 10. — Predaceous Beetle, a Tiger among Insects, 11. — Hymenopterous Parasite, 12. — Host Caterpillar with Cocoons of a Parasite upon its Back, 13.— Tiger Beetle, . ; : 5 : 14. —Chinch Bug, 15. — Colorado Potato Beetle, 16. — Hessian Fly, ; 17. — Alimentary Canal of Bluebird, 5 : : ; 18. — Young Cedar Bird on its First Day, 19. — Young Cedar Birds less than Three Weeks old, 20. — Young Grouse, 21.— Young Woodcock, . c : : A ie 5 22. — Young Robins, : : : < < c 23.— Young Crows, . c : 24.— Billing, or feeding by Regurgitation, 25.— Chipping Sparrow feeding Young, . 26. — Yellow-throat catching Birch Aphids, 27.— Western Cricket, . E C 3 28. — Gulls saving Crops by killing Crickets, . . 5 6 29.— Warblers destroying Plant Lice, . : - : ; 30. — The Winged Seed of White Pine, 31.— A Forest Planter, . ‘ 5 : 6 ; : ‘ 32. — Ruffed Grouse, ‘‘ budding,” . 3 é : . 33.— The Diligent Titmouse, . : : c 5 - C 34.— Winter Tree Guards, - c : : 5 . é 35.— Destructive Bark Beetle, 2 : 5 . 5 : 36. — Woodpecker hunting Borers, .» = c . c . 37.— Larva of the Cecropia Moth, . 5 ; - ° 5 15 49 XV1 LIST OF ILLUSTRATIONS. FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGuRE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGurRE 38. — Woolly Bear Caterpillar, 5 39. — Yellow Bear Caterpillar, c 40. — Caterpillar of the White-marked Tussock Moth, 41.— Web of the Brown-tail Moth Caterpillar, ; 42. — Nashville Warbler, . ; : . 43. — Caterpillar of the Brown-tail Moth, 44.— Warblers feeding on Young Caterpillars of the Gipsy Moth, 45. — Egg Cluster of the Gipsy Moth, : c a 46.— Wilson’s Thrush, . , 7 ; 47.— Wood Thrush, 7 48. — Golden-crowned Kinglet, 0 - 5 49, — Chickadee, : ¢ c . : . > 50.— Eggs of the Tent Caterpillar Moth, 5 . 5 51.— Codling Moth, Parent of the Apple Worm, 52. — Fall Cankerworm Moth, . . ‘ A 6 ; 53.— Apple Twig with Eggs of the Cankerworm Moth, . 54. — White-breasted Nuthatch, : 55.— Nuthatches, . 6 5 : 5 : 5 56. — Wood-boring Beetle, 5 - : 5 : 57.— Red-breasted Nuthatch, . 5 6 - : 58. — Brown Creeper, : : : : : 59.— Brown Thrasher, . A 6 A 5 S 60.—Catbird, . : : : 5 0 6 5 61. — Maryland Yellow-throat, ; < 5 : 62. — Oven-bird and Nest, : > : : 63.— Black and White Warbler, ‘ . - 5 64. — Chestnut-sided Warbler, . A 5 ‘ F 65.— Yellow Warbler, . : : 5 5 0 66.— American Redstart, 6 ; 5 ; ‘ 67.— Black-throated Green Warbler, ; : 5 68. — Pine Warbler, . - 5 f : 5 6 69.— Myrtle Warbler, . : : ‘ 5 . 70.— Woolly Apple Tree Aphis, . . : : 71.— Red-eyed Vireo, ; - 5 5 : : 72.— Warbling Vireo, ; B 2 A 5 5 73.— Yellow-throated Vireo, . 5 . ‘ 6 74. — Cedar Bird, s : . 5 5 A 5 75. — Passing the Cherry, . - Sj . . 76.— Good Work in the Orchard, . 5 5 ; 77. — Scarlet Tanagers and Gipsy Moth Caterpillars, 78. — Rose-breasted Grosbeak, Male, 3 5 79. — Rose-breasted Grosbeak, Female, . 2 6 80.— Towhee, . 5 . 5 5 : : 81.— Purple Finch, . : ° A 5 ° . 82.— American Goldfinch, 5 0 - : 5 ROSS Sho Bo eho eRe oe lor) bo bo a FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE LIST OF ILLUSTRATIONS. xvii 83. — Baltimore Oriole, 5 6 84.— Pea Weevil, . 3 . 2 85. — Tent Caterpillars, Eggs, and Cocoon, 86.— Click Beetle, 87.— Cucumber Beetle and Curculios, 88.— Gipsy Moth, Male, 89.— Cankerworm, . 90.— Wood Pewee, 91. — Tortricid Moth, 92. — Tussock Moth, 93. — Phoebe, 3 94.— Moth of Spring Cankerworm, . 95.— Wood-boring Click Beetle, 96. — Brown-tail Moth, 97.— Kingbird, 98. — Cetonia Beetle, 99.— May Beetle, . dl 100. — Hummingbirds about Two Weeks old, 101. — Hummingbird feeding Young, 102.— Young Hummingbirds nearly fledged, 103. — Skull and Tongue of Woodpecker, 104.— Spearlike Tongue-tip of Downy Woodpecker, 105. — Pine Borer, 106.— Pales Weevil, 107. — Cocoon of Codling Moth Serer by Taco dearer: 108.— Apple Tree Borer, . 109. — Section of Young Tree saved by Downy Woodpecker, 110.— Downy Woodpecker and his Work, 111.— Bark pierced by Downy Woodpecker, 112.— The Same, showing the Channels made by Bark Beetles, 113. — Pine Top killed by Pine Weevil, 114. — Tree ruined for Timber by Pine Weevil, 115. — Section of Red Maple tapped for Sap, 116.— A Similar Section, 117.— Hairy Woodpecker, 118. — Flicker, 119. — Black-billed es 120. — Caterpillar of the Io Moth, 121.—Spiny Elm Caterpillar, . 122.— Fall Web Worm, : 123. — Red-humped Caterpillar, 124. — Tree Hoppers, 125. — Robin, 126.— White Grub, 127. — Bluebird, é 5 5 “ : é . 253 . 257 . 264 PAGE 225 226 226 227 . 220 230 231 232 232 233 234 234 234 : 28 36 - 200 238 242 2435 244 246 . 246 247 248 . 201 251 253 254 254 . 255 255 207 - 258 6 oll 264 264 . 265 & PAP 273 282 - 288 6 gh XVill LIST OF ILLUSTRATIONS. PAGE FicureE 128.—The Bluebird’s Bread, 292 Figure 129.— Indigo Bunting, Male, 298 Ficurkr 130.— Indigo Bunting, Female, 298 Ficure 131.—Song Sparrow, 299 Ficure 132.—Slate-colored Junco, 5 - E 5 5 : c cereus! Figure 133.— Field Sparrow, < 302 Ficure 134.— Chipping Sparrow, : - - - : . . 303 Figure 135.— Moth of the Tent Caterpillar, : 0 c “ > . 304 FicureE 136.— Chipping Sparrows hunting Beet Worms, . c : . 304 Ficure 137.— Tree Sparrow, 0 - 6 . - é : . 306 FIGURE 138.— White-throated Sparrow, c 0 é 0 F ; . 307 FIGurRE 139.— Vesper Sparrow, . , , 0 0 5 : o a lit Ficure 140.—Crow Blackbird, . 5 2 A 6 ; y 5 . 314 Ficure 141.— Meadowlark, . 3 : A - 5 5 3 FicureE 142.— Red-winged Blackbird, Male, 5 C ; 5 4 . 319 Figure 143.— Red-winged Blackbird, Female, . : : 3 c . 320 Ficure 144.— Bobolink, Male, and Army Worm, : 3 ; - - 322 FicureE 145.— Bobolink, Female, . : . é ‘ 3 : F . 320 Figure 146.— Bob-white, . é 6 5 : : F : ; USEFUL BIRDS. tions that, when shot, their distended skins burst open when their bodies strike the ground. This accumulation of fatty tissue may aid to tide the birds over a season of scarcity, but the moment they need food they must seek it far and wide, if need be, as they cannot live long with- out it. Birds are not always the ethereal, care-free creatures of the poet’s dream. In time of plenty, the joys of flight, of sunshine, of singing, of riding swinging boughs, or toss- ing to and fro on flashing waves, are theirs to the full; but in times of scarcity, or when rearing their helpless young, their daily lives are often one continued strenuous hunt for food. Food, therefore, is the mainspring of the bird’s existence. Love and fear alone are at times stronger than the food craving. The amount of food that birds are capable of consuming renders them doubly useful in case of an emergency. The utility of birds in suppressing outbreaks of other an- imals by massing at threatened points is of no greater value in the plan of nature than is the perennial regulative influ- ence exerted by them individually everywhere as a check on the undue increase of other forms of life. He who studies living birds, other animals, or plants, and the relations which these living organisms bear to one another, will soon learn that the main effort of each plant or animal is to preserve its own life and produce seed or young, and so multiply its kind. He will see, also, that the similar efforts of other organisms by which it is surrounded tend to hold its increase in check. The oak produces many hundreds of acorns; and were each acorn to develop into a tree, the earth eventually would be full of oaks, for all other trees would be crowded out. But many animals feed on the acorns or the young seedlings ; other trees crowd out the young oaks; caterpillars feed on the foliage; other insects feed on the wood and bark, de- stroying many trees; so, on the average, each oak barely succeeds in producing another to occupy its place. Certain moths deposit hundreds of eggs in a season; and were each egg to hatch and each insect to come to maturity and go on producing young at the same rate, the entire earth UTILITY OF BIRDS IN NATURE. 7 in a few years would be carpeted with crawling caterpillars, and the moths in flight would cover the earth like a blanket of fog. But under natural conditions the caterpillars that hatch from the eggs of the moth are destroyed by birds, mammals, insects, or other animals, by disease or the action of the elements, so that in the end only one pair of moths succeeds another. If every Robin should produce five young each year, and each Robin should live fifteen years, in time every square foot of land on this continent would be packed with Robins; but the surplus Robins are killed and eaten by various other birds or by mammals, each striving to maintain itself; so that, eventually, the number of Robins remains about the same. Thus we see that, while birds, insects, other animals, and plants are constantly striving to increase their numbers, the creatures that feed upon them operate continually to check this undue multiplication. The Hawk preys upon the smaller birds and mammals. The smaller birds and mammals feed on insects, grass, seeds, leaves, and other animal and vege- table food, each virtually endeavoring to gain strength and increase the numbers of its race at the expense of other living organisms. There is a competition among various dissimilar organisms, also, in seeking certain kinds of food. Grazing mammals, such as cattle, sheep, and deer, eat grass. Grass is eaten also by birds, mice, and insects. If any one kind of these creatures should be left without check, and become too numerous, it might consume the food supply of all. In the great struggle for existence, each perpetuating form of life that we call a species is really an expansive force, that can be restrained and kept in its proper place only by the similar expansive forces (other species) by which it is surrounded. It is as if the whole field of ani- mal and vegetable life consisted of a series of springs, each exerting a pressure in all directions, and each held in place only by the similar expansion of the springs surrounding it. This action and reaction of natural forces constitute what is known as the balance of nature. Any serious disturbance of this balance is always fraught with serious consequences. (o2) USEFUL BIRDS. All animals and plants are sustained and nourished by air, water, and food. Food supplies the material for growth and development. Its abundance increases the energy and fertility of a species, —its ability to produce young abun- dantly. The study of the food and food habits of birds and other animals is of the utmost importance, for by this study alone we are enabled to trace their life relations to each other, to plants, and to man. Some progress. has already been made in this study. We know in a general way the character of the food of some of the common birds of the United States ; but we know so little as yet of the food of the smaller mammals, the reptiles, batrachians, many insects and other lower animals, that it is impossible to tell what may be the ultimate effect of the destruction of any one of these animals by birds. On the other hand, no one can tell what grave and far- reaching results might follow the extermination of a single species of bird; for it is probable that the foed preferences of each species are so distinctive that no other could fill its place. Birds are guided by their natural tastes in selecting their food, unless driven by necessity. Of the food which suits their tastes, that which is most easily taken is usually first selected. In the main, species of similar structure and habits often choose similar food, but each species usually differs from its allies in the selection of some certain favorite insects. Were a species exterminated, however, its place might be taken eventually by the combined action of many species, for nature always operates to restore her disturbed balances. The complexity of the food relations existing between birds and other organisms may be indicated hypothetically by a brief illustration. The Eagles, larger Hawks, and Owls feed to some extent on Crows, and probably the nocturnal, tree-climbing, nest-hunting raccoon also robs them of eggs and young: otherwise, they seem to have very few natural enemies to check their increase. Crows feed on so many different forms of animal and vegetable life that they are nearly always able to find suitable food; therefore they are common and widely distributed. UTILITY OF BIRDS IN NATURE. 9 The general fitness of the Crow is admitted by all. Un- doubtedly it has a useful work to perform in the world ; but a careful study of its food habits shows so many apparently harmful traits that it may well leave the investigator in some doubt as to the Crow’s value in the general plan. Crows rob the nests of Robins, eating very many eggs and young birds ; they therefore constitute a serious check on the in- crease of this species. Robins feed largely on common black beetles, called ground beetles (Carabidee), which run about on the ground, hiding under stones and other rubbish. As these beetles are not quick to fly by day, and are easily caught, they form a consid- erable part of the food of many ground- frequenting birds. But ground beetles feed, to a greater or less extent, on other insects. The question then arises, Is not the Robin doing harm in killing ground beetles, and does it not merit the destruc- tion of its eggs and young by the Crow? pig. o— Ground If the Robin’s habit of eating these beetles beetle. is harmful, is not the Crow rendering a service by destroy- ing a bird so apparently destructive as the Robin? Perhaps, if there were too many Robins, they might eat too many ground beetles, and thus become the indirect cause of the destruction of much vegetation, by saving the lives of the caterpillars and other harmful insects that the ground beetles, had they been left to themselves, might have destroyed.? Many ground beetles that are eaten by the Robin feed much on vegetable matter.2 This makes these beetles doubly useful in one respect, for they can maintain their numbers 1 These questions can be answered only by one having a thorough knowledge of the food of our ground beetles, —a knowledge which no living man yet pos- sesses; but enough has been learned to throw some light on their food habits. Insects that feed promiscuously on other insects are generally classed as bene- ficial in so far as they take insect food, even though they may destroy some so-called useful insects; for, as the so-called injurious insects far outnumber the useful ones, it is considered safe to regard the habit of feeding on insects a bene- ficial one. 2 The ground beetles of the genus Calosoma and those of some closely allied genera are believed to feed entirely on animal food, as their structure fits them for that alone. They feed ravenously upon both beneficial and injurious insects, and when too numerous they devour one another. These are not the beetles that are generally eaten by the Robin, however, but rather by the Crow. 10 USHFUL BIRDS. when insect food is not plentiful, and so be ready to check any increase of insects which may occur. On the other hand, if they become too numerous, they may create serious disturbances by destroying grass, grain, or fruit. I have witnessed attacks made by certain of these beetles on grain and strawberries; and were they not held in check by birds, it is probable that they would soon become serious pests. Their destruction by Robins and other birds tends to keep these beetles within those normal bounds where they will do most good and least harm; while the check kept by the Crow on the increase of the Robin may pre- vent the latter from destroying too many ground beetles. If certain low-feeding caterpillars became so numerous as to be injurious, ground beetles and Robins would feed largely on them. The caterpillars would then largely take the place of the beetles in the Robin’s food. The beetles, therefore, would increase in numbers, and the force of both bird and beetle would be exerted to reduce the caterpillars to their normal limit. This accomplished, the Robin would again attack the ground beetles, and thus tend to reduce them to normal numbers. Let us now go back to the beginning of our chain of destruction. The Eagles, Hawks, Owls, and raccoons may indirectly allow an increase in the number of Robins by preventing too great an increase of the Crow. But Hawks and Owls also prey on the Robin, and, by dividing their attention between Robin and Crow, assist in keeping both birds to their normal numbers. Whenever Crows became rare, Robins as a consequence would become very numerous, were it not that the Hawks also eat Robins. (Hawks and Owls eat also some species of insects that are eaten by both Robin and Crow. ) There are compensations in the apparently destructive career of the Crow. An omnivorous bird, it seems inclined to turn its attention to any food which is plentiful and readily obtained. It is a great feeder on May beetles (miscalled “June bugs”), the larve of which, known as white grubs, burrowing in the ground, sometimes devastate grass lands and also injure the roots of many plants, including trees. UTILITY OF BIRDS IN NATURE. 1 The Crow is also a destroyer of cutworms. These are the young or larve of such noctuid moths or “millers” as are commonly seen fluttering from the grass by any one who disturbs them by walking in the fields. Robins also feed largely on cutworms, as well as on the white Fig. 3.—Cutworm. grub of the May beetle. When these insects are few in number, a part of the usual food supply of both Robin and Crow is cut off. This being the case, the hungry Crows are likely to destroy more young Robins and other young birds than usual, in order to make up the supply of animal food for themselves and their ravenous nestlings. Ina few years this Fig. 4.— Noctuid moth. would decrease perceptibly the number of Robins and other small birds, and would be likely in turn to allow an increase of May beetles and cutworms. As these insects became more plentiful, the Crows would naturally turn again to them, paying less attention to the young of Robins and other birds for the time, and allowing them to increase once more, until their multiplication put a check on the insects, when the Crows would of necessity again raid the Robins. The Blue Jay may be taken as another instance of this means of preserving the balance of nature. Hawks and Owls kill Blue Jays, Crows destroy their eggs and young ; thus the Jays are kept in check. Jays are omnivorous feeders. They eat the eggs and young of other birds, par- ticularly those of Warblers, Titmice, and Vireos, — birds which are active caterpillar hunters. But Jays are also extremely efficient caterpillar hunters. Thus the Jays compensate in some measure for their destruction of cat- erpillar-eating birds, by themselves destroying the cater- pillars which they unconsciously have allowed to increase in numbers by destroying these birds. Like the Crow, they virtually kill the young of the smaller birds, and eat them, that they (the Jays) may eventually have more in- sect food for their own young. When this object has been attained, the Jays may again, perhaps, allow an increase of 12 USEFUL BIRDS. the smaller birds, the survivors of which they have unwit- tingly furnished with more insect food, thus making con- ditions favorable for the increase of the smaller birds. These oscillations or alternate expansions and contractions in the numbers of birds or insects are usually so slight as to escape common observation. It is only in those cases where they are carried to extremes that they result disas- trously. Under nature the checks on the increase of birds are essential, else they would increase in numbers until their food supply had become exhausted, when they would starve, and other consequences even more grave and much more complex would then follow. While these examples of the way in which the balance of nature is preserved may be regarded as somewhat hypothet- ical, they probably approximate what actually takes place, although the feeding habits of birds undoubtedly produce far more complicated results than are here outlined. It is a law of nature that the destroyer is also the protector. Birds of prey save the species on which they prey from overproduction and consequent starvation. They also serve such species in at least two other ways: (1) the more powerful bird enemies of a certain bird usually prey upon some of its weaker enemies; (2) these powerful birds also check the propagation of weakness, disease, or unfitness, by killing off the weaker or most unfit individuals among the species on which they prey, for these are most easily captured and killed. We have seen already that Jays, which are enemies of the smaller birds, are preyed upon by the more powerful Crows, Hawks, and Owls. These latter also destroy skunks, weasels, squirrels, mice, and snakes, all of which are also enemies of the smaller birds. No doubt these animals would be much more injurious to the smaller birds were they with- out these wholesome feathered checks on their increase. In a state of nature,-albino birds or those that are rendered conspicuous to their enemies by any unusual mark or color are soon captured by some bird of prey, and seldom live to perpetuate their unfitness. UTILITY OF BIRDS IN NATURE. 13 An experience with domestic Pigeons, related to me by Mr. William Brewster, will serve as proof of this state- ment. He had kept a flock of twenty-five or thirty Pigeons in confinement at Cambridge for many years. Under such protective domestication the individuals of the flock had assumed a variety of shades and colors. There were blue Doves, white Doves, and many pied individuals varying between the two extremes. He removed the flock to his farm in Concord, where they were at liberty to roam at will during the day. Here they were attacked by Hawks, and in five years’ time the white and pied birds were practically all weeded out, and the flock consisted of blue rock Doves alone. The preservation of birds by the weeding out of sickly or wounded individuals did not escape the notice of Prof. Spencer F. Baird, who wrote : — It has now been conclusively shown, I think, that Hawks perform an important function in maintaining in good condition the stock of game birds, by capturing the weak and sickly, and thus preventing reproduc- tion from unhealthy parents. One of the most plausible hypotheses explanatory of the occasional outbreaks of disease amongst the grouse of Scotland has been the extermination of these correctives, the disease being most virulent where the game keepers were most active in de- stroying what they considered vermin.! It appears, then, that under natural conditions the birds of prey destroy merely the unfit and surplus individuals of the species on which they prey, and do not, on the whole, reduce their numbers below what the land will support. The relations of birds to insects merit the most profound thought and study. No one can study intelligently the effect produced by birds upon insect life unless he first acquires some knowledge of the habits and transformations of insects, and is able to distinguish the so-called injurious and _ benefi- cial groups. A brief explanation here of the transformations of insects will better enable the reader to understand the terms used later in describing them as food for birds. ? Letter from Prof. Spencer F. Baird to Mr. J. W. Shorton, published in the Journal of the Cincinnati Society of Natural History, 1882, Vol. V, pp. 69, 70. 14 USEFUL BIRDS. Most insects emerge from eggs, which ordinarily are de- posited and fixed by the female parent in positions where the young will find suitable food in readiness for them when the eggs hatch. Some insects bring forth their young alive, but this is an Fig. 5.—Flyana exception to the general rule. The young ig insect that emerges from the egg is called the larva (plural, Jarvee). Some larvee are provided with short legs or feet, others kave none that can be seen; but all are without wings, and move about mainly by crawling. Their principal occupation is to feed. Some species, such as the Fig. 6.— Chestnut beetle or weevil, enlarged. a, larva or grub, enlarged; b, young larva in chestnut, natural size. leaf-eating caterpillars, rest during certain parts of the day ; others, like the larve of fiesh-feeding flies, apparently feed constantly. As all eat enormously and grow rapidly, they are capable, when in great numbers, of doing much harm or good, as the case may be. The larve of flies are commonly called maggots or slugs, those of beetles are called grubs, and those of butterflies and moths are called caterpillars. Much of the injury done by insect pests is attributable to the larve; although some, like certain leaf-eating beetles, are injurious in the per- fect form. During the rapid growth of a larva the skin is shed several times, until full size is reached, when the next transformation is effected, and the larva becomes a pupa or chrysalis. Among the butterflies and moths (Lepidoptera) the insect often spins from within itself a thread, which it weaves into a case or cocoon which encloses it while in the Fig. '7.— Caterpillars, the larve of butterflies. UTILITY OF BIRDS IN NATURE. 105) pupal form. This stage it passes without food and while fixed to some object. The pup or nymphs of some other insects, however, move about freely, as is the case with locusts, grasshoppers, and like insects (Orthoptera).* The pupa finally throws off its outer shell, and emerges a fully developed or perfect insect or imago with wings; although some insects which, like some birds, have lost the use of their wings, never fly.? After the union of the sexes the female insect eventually Fig. 8.— Pupe or chrysalids. deposits the eggs for the next generation. Thus we have four forms which insects assume: (1) the egg, (2) the larva, (3) the pupa or nymph, (4) the imago or perfect winged insect. Practically all living animals of appreciable size, as well as most plants that are visible to the unaided eye, furnish food for certain insects. Other insects feed on dead animals, dead trees, or other decaying animal or vegetable matter. A certain larva has been known even to tunnel into marble. Those insects which feed on live vegetation or living animals are capable of doing great harm if they increase unduly ; while those that feed only on dead animals or dead and decaying vegetation can do on'y good in nature, although they may be injurious to man by destroying hides, furs, pre- served meats, or clothing. It is difficult to perceive the usefulness of those so-called injurious species which feed on the different parts of plants ; still, the larve that eat the buds, the caterpillars that feed 1 In the Orthoptera the transformations are imperfect; the larve of grass- hoppers, for example, are provided with well-developed legs, and much resemble the imago or perfect insect, but are without wings. In this stage they are usually called nymphs. As they approach maturity they enter what is virtually an im- perfect pupal stage, but retain their shape, limbs, and activity. They now show rudimentary wings, but it is only at maturity that they are capable of flight. 2 The Thysanura, or lowest order of insects, including ‘‘ bristle tails,’’ “ spring tails,” ‘‘ fish moths,’’ and the like, never become winged or develop any trace of wings. 16 USEFUL BIRDS. on the leaves, the borers that attack the twigs, and the insects that destroy the blossom or the fruit, all probably, when in normal numbers, exert a useful influence by a healthful and necessary pruning, which at least does no injury to the tree. It is only when these insects increase abnormally in numbers that they seriously injure or destroy many vigorous plants and trees. During such outbreaks birds often come to the rescue of the trees. Birds feed very largely on such insects, and by keeping down their excessive multiplication perform a great service in the economy of nature. Here the keen senses and remarkable flight powers pos- sessed by birds aid them in concentrating their forces imme- diately when and where they are most needed. The rule will bear repetition here that, other things being equal, birds will take such suitable food as is most plentiful and most sasily obtained. This is especially true of the feeding of birds on insects, although there are some insects that are so protected by prickly spines or acrid secretions that few birds will eat them. Such are the caterpillars of the mourning- cloak butterfly (Huvanessa antiopa) and the imagoes of the Colorado potato beetle (Leptinotarsa decemlineata). Birds are quick to assemble wherever in the woods the disappearing foliage denotes the presence of great numbers of destructive caterpillars, or where patches of dead and dying grasses indicate that grubs are destroying the grass roots on meadow or prairie. Birds flock to such places to feed on the easily procured irsects, and so take a prominent part in repressing such insect outbreaks. This is so well known as to be worthy of only passing mention here, were it not to inquire whether the birds that assemble in such locali- ties do not neglect their normal and special work of hold- ing in check certain species elsewhere. If the Robin, for example, which feeds normally on such ground-frequenting insects as white grubs, cutworms, grasshoppers, March flies, and ground beetles, goes to the woods to feed on caterpillars, as is sometimes the case, does it neglect to devour any one of the insects on which it usually feeds, and so give this insect a chance to increase? If so, it would be merely sup- pressing one outbreak and permitting another. But birds UTILITY OF BIRDS IN NATURE. ili do not neglect any one element of their ordinary food in such cases. They neglect them all, both animal and vegetal, for the time being, and turn to the now abundant insect food that is more readily accessible. This I have observed in studying outbreaks of cankerworms, and Professor Forbes records a similar experience with birds feeding on canker- worms. ! This apparently agrees with the experience of the forest authorities in Bavaria during the great and destructive out- break of the nun moth (Liparis monacha) which occurred there from 1889 to 1891. The flight of Starlings collected in one locality alone was credibly estimated at ten thousand, all busily feeding on the caterpillars, pup, and moths. Enormous flights of Titmice and Finches were similarly engaged. The attraction of Starlings to such centers be- came so great that market gardeners at a distance felt their absence seriously.” Evidently in such cases the birds, changing their usual fare entirely for the time being, remove their restraining influence from both useful and injurious insects, leaving one to exert its full force as a check on the other, until the urgent business of the serious outbreak of grasshoppers, caterpillars, or some other pest has been attended to; then the birds return to their usual haunts and food, and exert the same repressive influence as before. Although the insects which are potentially injurious are greatly in the majority, there are many species which per- form a very apparent useful function in nature. Such are the bees and some of their allies of the order Hymenop- tera, — insects which travel from flower to flower in search of sweets, and, becoming loaded with pollen, fertilize the blossoms, rendering the trees fruitful. Other insects seem especially adapted to hold the potentially injurious species in check. Some which are called predaceous insects attack other insects and devour them, as do the ground beetles 1 The Regulative Action of Birds upon Insect Oscillations, by 8. A. Forbes. Bulletin No. 6, Illinois State Laboratory of Natural History, 1883, p. 21. 2 Protection of Woodlands, by Herman Fiirst. English edition, translated by John Nisbet, 1893, p. 126. 18 USEFUL BIRDS. (Carabide) already mentioned, the tiger beetles (Cicinde- lide), the ladybirds (Coccinellide), and many of the true bugs. Such insects are often miscalled parasites, but they do not merit this misnomer. The predaceous beetles are the wolves, lions, and tigers of the insect world. They hunt down their prey, pouncing upon it and killing it when found. Often these insects are so ravenous that they con- tent themselves with drawing the life blood and other juices from their quarry, leaving the rest to be devoured by ants Fig. 9.—Predaceous beetle; the lion OF other scavengers. While beetle or caterpillar hunter. the larger predaceous beetles attack many of the larger insects, smaller species, such as ladybirds, assail other minute insects, such as the aphids or plant lice. The bugs are the vampires of the insect world. Armed with a strong proboscis, the bug pursues its prey, pierces it and sucks its juices, leaving it drained and lifeless ; but the so-called parasitic insects feed in a manner entirely different. Certain families of the Hymenoptera and Diptera contain parasitic genera and species. These insects range in size from that of a large wasp down to that of a small midge. Most of Fig. 10.—Pre- : = a510 2 daceous beetle; them have the habit of depositing their eggs a tiger among on, or in, the bodies of other living insects. seas * Each ichneumon fly is armed with a long ovipositor, which operates somewhat like a hollow sting, by means of which it is en- abled to pierce the skins of the larve of other insects and pass its eggs through the Fig. 11.—Hymenop- puncture, depositing them in the body tis- terous parasite. Imago, natural size Sues beneath the skin. These eggs soon oy nee hatch, and the young larve, emerging from UTILITY OF BIRDS IN NATURE. aS them, feed first upon the fatty portions of the caterpillar in which they find themselves. The caterpillar thus unwill- ingly becomes their host, furnishing them with food and lodging from and within its own substance. When they have made their growth, and it is nearly time for them to pupate, they attack the vitals of their host, killing it, and then pupating either within or upon its body. Soon they emerge as perfect flies, the females again seeking other caterpillars as hosts for their progeny. Often these parasites do not kill their _. Fig. 12.— Host caterpillar, with host until it has sought some place cocoons of the parasite upon its of safety and pupated. Every cat- ™ erpillar or pupa thus destroyed nourishes one or many of these parasites, to emerge and attack surviving caterpillars. The parasites themselves, however, are often attacked in the same manner by a secondary parasite, which destroys them precisely as they destroyed the caterpillar. The larger pri- mary parasites may deposit a single egg or only a few in each caterpillar, while the smaller ones may deposit the entire brood in the body of a single caterpillar. Birds eat both predaceous and parasitic insects. We have seen that they eat ground beetles, many of which are pro- vided with acrid secretions that are supposed to render them disagreeable and offensive to the taste, and so give them a certain immunity from their ene- mies. Evidently, however, it takes a very strong flavor to take the edge off a bird’s appetite, for birds eat bugs; and any child who has ever eaten berries from the bushes, and inadvertently put one of the berry-eating bugs in his mouth, knows how disgusting their Fig.13.—Tiger flavor is. There are some useful insects that Peetles ausefal are seldom eaten by birds. The very smallest form, eaten fe by very few are beneath the notice of most birds. The birds. ’ . tiger beetles and some of the useful flies are so quick that birds find it difficult to catch them. Wasps and bees, though eaten by some birds, can protect themselves very well with their stings. Probably, however, 20 USEFUL BIRDS. birds eat a great many caterpillars containing parasites, though birds will reject any caterpillars that show signs of weakness or disease. The question then arises, Is the bird doing harm by eating caterpillars or other larve containing parasites? The bird certainly ends the destructive career of the larva at once. The parasites would have ended it eventually ; but had it been left to them, it might have gone on for some time in its destructive career, doing as much injury as if not parasitized; the parasite merely destroys it in time to prevent it from propagating its kind. So far the evidence is in favor of the bird. The question remains, however, whether the bird and its young would eventually destroy more caterpillars than would the progeny of the parasites had they not been eaten by the bird. This question evidently is unanswerable. Birds act as the primary check on the increase of destructive insects ; parasitic insects are the secondary check provided by nature to operate in con- junction with the birds, or to supplement the regulative action of birds where the number of birds is insufficient to check the increase of insects. Birds sometimes kill many of the imagoes of parasitic insects in flight, where such insects are numerous. At first sight, this would seem to condemn the birds; on further study, it seems probable that this is often a harmless habit. Where parasitic insects are found in great numbers, it is probable that the birds destroy mainly the surplus flies, which otherwise, failing to find hosts for their young, would merely live out their time and die without issue were they not killed by the birds. Such harm as birds do in killing primary parasites may be offset by the killing of secondary parasites by birds, for this acts as a protection to the pri- mary parasites. Certain predaceous bugs feed not only on insects but also on vegetable food. They also attack other predaceous or useful insects. Birds, by preventing their undue increase, may prevent excessive injury to both useful plants and insects. All reasoning from known premises leads to one conclusion UTILITY OF BIRDS IN NATURE. 21 regarding the utility of birds in nature. It may be stated confidently, as a general rule (not without exceptions, how- ever), that, in the natural order of things, the species that is kept within normal numbers without great fluctuations, whether beast, bird, reptile, batrachian, or insect, will serve a useful purpose; while the species that increases unduly will devour too much animal or vegetable food, and, by dis- turbing the balance of nature, become a pest. It is the abnormal increase of the gipsy and brown-tail moths and the “ English” Sparrow in this Commonwealth that has been responsible for the injury they have done. If birds do well their part in holding in check native insects, small mammals, reptiles, batrachians, and other forms of life on which they feed, they have fulfilled their mission, even if in doing this they destroy some individuals of some species that are classed as useful. This, then, is the chief mission of the birds in organic nature: to fill their peculiar place in preserving the balance of nature’s forces, —a place that cannot be filled by any other class of animals. In much of the foregoing it appears that the birds are engaged in checking the increase of insects and other ani- mals, exerting that check constantly when and where it is most needed. The vegetable food of birds is perhaps of less importance, but here also they exercise a restraining influence by destroying seed as well as in other ways. They also exert a beneficial influence by planting seed. Birds also play a great part in the distribution of plants, the upbuilding and fertilizing of barren islands, and a minor part in the distribution of insects. Wild-fowl and Herons may sometimes carry small seeds for many miles embedded in particles of mud which adhere to their feet. Where this mud drops from their feet, the seeds may sprout and grow. The fruit-eating birds are among the most valuable of tree planters, distributing the seeds far and wide. Certain insects which cling to the feet or feathers of birds are sometimes distributed in this way. The part taken by birds in forest planting and fertilizing barren lands will be taken up far- 22 USEFUL BIRDS. ther on, in connection with their relations to forestry and agriculture. Taken all in all, the relations of birds to the natural world are beneficent. Evidently birds are an essential part of nature’s great plan. This being the case, they must be serviceable to man also, for man, the animal, is a mere inte- gral part of nature. VALUE OF BIRDS TO MAN. 23 CHAPTER I. THE VALUE OF BIRDS TO MAN. Birds are classed as useful or injurious only as they affect man or his property. In an uninhabited country birds can- not be ranked as beneficial or harmful, good or bad, for there is no agriculture. There the earth, untroubled by man, brings forth vegetation, and animals after their kind. Nature’s laws, working in harmony, need none of man’s assistance. The condition of the earth before man appeared is typified in the Biblical account of the garden of Eden. PRIMITIVE MAN’S RELATIONS TO NATURE. We have seen that under such natural conditions all birds are essential to the general welfare, each filling well its appointed place. But trouble and discord come to Eden. Man appears, and becomes the dominant power on the earth. He sets up artificial standards of his own, and bids nature conform to them. He is constantly at war with nature. He classes wild creatures as injurious, provided they either in- jure his person, or cause him loss by destroying or harming any of his property or any of the wild animals or plants which he regards as useful. He considers all wild creatures beneficial that contribute directly or indirectly to his own welfare, or to the increase in value of his property. He is often in error, even from his own standpoint, in thus classifying animals, owing to an insufficient knowledge of their food habits ; but the principle holds good, and stand- ards change with the acquisition of knowledge. Man ina savage state lived, like other animals, in harmony with nature. At first he practised no agriculture and domes- ticated no animals. He made war mainly upon his fellows and the larger beasts of prey, killing them in self-defence or for food. (It seems prebable that primitive man was a cannibal.) Otherwise, he fed altogether upon the wild 24 USEFUL BIRDS. products of forest, meadow, sea, lake, or river. The only creatures that he then could regard as injurious were those that attacked his own person or the persons of his family. Any irruption of animals, such as vast herds of deer, bison, or antelopes, hordes of monkeys or rats, flights of birds or locusts, outbreaks of caterpillars or other creatures, was about as likely to benefit as to injure him. For instance, when locusts became so numerous as to destroy a part or all of his vegetable food, he followed the example of other creatures, and, by feeding for the time on the superabundant locusts, exerted an influence toward restoring the balance of nature. (There are still savage tribes in various parts of the earth that eat monkeys, rats, locusts, grubs, or caterpillars. ) In times of plenty primitive man feasted, as did other animals ; and in times of want, like them, he starved. But usually he was indifferent to any ordinary injury done to the animal or vegetable life around him, as he owned no prop- erty, and could readily move his camp from a region of want to one of plenty. CHANGED RELATIONS PRODUCED BY AGRICULTURE. With the beginning of agricultural practice, however, all this was changed. When man began to domesticate animals, he faced immediately a host of enemies. Wild animals and birds attacked his cattle, horses, sheep, goats, and hogs, or devoured their young. Tormenting insects stampeded his herds, or carried disease and death among them. His poul- try were decimated by scores of rapacious animals. When he began to plant seed and raise grain, both his growing and his garnered crops were attacked by a host of ene- mies; for now he had begun to disturb nature’s balance, and nature asserted herself in the effort to resume her inter- rupted sway. This was the beginning of a war with nature which will never cease so long as man inhabits the earth ; for the agriculturist does not work altogether with nature, but largely against her. Most of the animal and vegetable forms that he produces are at variance with those produced by nature, and must be continually fostered and protected VALUE OF BIRDS TO MAN. 25 if they are to maintain their artificial characters and excel- lences. Left to themselves, the various breeds of domesti- cated Pigeons would all disappear, merging into the original Dove from whence they sprang. All artificial varieties of animals, plants, and fruits would, under nature, become, in time, like the wild stock from which they originated. Hence man must wage war continually against organic nature, in order to maintain his artificial standards against her inex- orable laws. The beginning of agriculture was the first step toward civilization as well, for the necessity of remaining near his crops to guard them from their enemies compelled the prim- itive farmer to erect a permanent habitation. This took his attention from war and the chase, for much of his time was now occupied in tilling the soil and caring for his crops and animals. The slow growth of primitive agriculture in the older civilized countries gave time for a gradual adjustment of the forces of nature to the new conditions established and main- tained by man. The gradual or partial clearing away of the forests occupied centuries. The planting of crops merely kept pace with the natural increase of population, while the destruction of wild animals and their replacement with domesticated species were similarly gradual and progressive. So, although in the older countries agriculture suffered much from the pests to which its operations must always give rise, it remained for the peopling of newer lands to develop the greatest difficulties in the path of the farmer. Agriculture produces an increased food supply. The population increases correspondingly, and the overflow seeks new fields. In these new lands, of which America is the most prominent example, the conditions of civilization and agriculture have replaced with marked rapidity those of savagery and primeval nature. MAN AT WAR WITH NATURE IN THE NEW WORLD. All the greater changes that were effected gradually by man in Europe, where, in the course of centuries, civiliza- tion was slowly evolved from savagery, —all these stupen- 26 USEFUL BIRDS. dous changes, — were wrought here in a few years by the tide of immigration from the eastern world. In many communities only a score of years elapsed be- tween the subjugation of the unbroken wilderness and the building of a farming town or growing city. In Massachu- setts the settlers cut down the forest ; killed off most of the larger mammals and birds ; imported and bred horses, cattle, and poultry ; cleared and planted much of the arable land ; introduced many new plants; and rapidly changed the ap- pearance of the country from that of a wilderness to that of an agricultural colony. Thirty years after the landing of the Pilgrim Fathers at Plymouth, eastern Massachusetts was well colonized; with several growing seaport towns; with prosperous farms, fertile fields and green pastures; with flocks and herds grazing on many a hill, where the wild Indian and the red deer formerly roamed. All these changes, taking place so rapidly, produced great disturbances in the economy of nature. As the wolf, lynx, puma, and bear were killed or driven away, the smaller animals on which they had formerly preyed increased in numbers and attacked the crops. Crows, Blackbirds, and many insects, finding in the grain crops new sources of food supply, swarmed upon them and multiplied exceedingly. Birds and insects attacked the cultivated fruit. Thousands of acres of cleared meadow land were producing crops of grass. Given this increased food supply, locusts and other grass-eating insects increased in numbers. The settlers, meantime, were destroying the Heath Hen, Quail, Plover, Blackbirds, Hawks, and Crows, the natural enemies of the locusts. As time went on, many new plants were introduced from Europe, and in some cases insect pests unwittingly were brought with them. The two succeeding centuries brought about a tremendous immigration from Europe. As settlement extended into the western States, great fields of wheat and other grains were established, covering the plains in some instances as far as the eye could see. Hundreds of thousands of acres were planted to orchards and vineyards ; great areas near the cities were devoted to garden vegetables ; north and south, corn, wheat, and cotton clothed the land. bo a | VALUE OF BIRDS TO MAN. THE INCREASE OF INSECT PESTS. Insects introduced from foreign lands found here a para- dise, in which to multiply, in the great areas planted year after year to the same crops. Having escaped their native enemies, they had come to an abundance of food in a land where many of the insect-eating birds and other insectivo- rous animals had been much reduced in number by the unwise policy of the settlers. Hence the rate of increase of im- ported insect pests in America has far exceeded that of the same insects in their native lands. Certain native American insects, finding their food plants destroyed by the cutting down of the forests or the break- ing up of the prairie, turned their attention to the crops of the farmer, and became important pests. Such are the cutworms (Noctuidz) ; their name is legion. Others, having been reached in their desert or mountain homes by the advance of civilization, left their natural food for the more succulent plants raised by man, and so spread over the country from farm pig 44. chinen to farm. Such are the chinch bug and the she ae st Colorado potato beetle, which, as civilization ios advanced westward, met it and spread toward the east. The enormous losses which have occurred in the United States from the destruction of growing crops by insects must seem incredible to those who do not realize how vast are the numbers of insects, how stupendous their power of multi- plication, how insatiable their voracity. When we fully appreciate the consuming powers of insects, they assume an economic importance greater than can be accorded to the ravening beast of prey. Let us consider briefly, then, the potency for evil that lies hidden in the tiny but innumerable eggs of injurious insects, which require only the warmth of the summer sun to release from confinement their destructive energies. 28 USEFUL BIRDS: THE NUMBER OF INSECTS. The number of insect species is greater by far than that of the species of all other living creatures combined. More than three hundred thousand have been described. There are many thousands of undescribed species in museums. Dr. Lintner, the late distinguished State entomologist of New York, considered it not improbable that there were a million species of insects. The number of individual insects is beyond human comprehension or computation. Dr. Lintner says that he saw at a glance, in a small extent of roadway near Albany, more individuals of a single species of snow flea, as computed by him, than there are human beings on the entire face of the earth. A small cherry tree ten feet in height was found by Dr. Fitch to be infested with an aphid or plant louse. He estimated (first counting the number of these insects on a leaf, the number of leaves on a branch and the number of branches on the tree) that there were twelve million plant lice on the tree; and this was only one tree of a row similarly infested. To give the reader an approximate idea of the number of insects on the tree, it was stated that, were a man to count them singly and as rapidly as he could speak, it would require eleven months’ labor at ten hours a day to complete the enumeration.! In the days of their abundance the Rocky Mountain locusts in flight filled the air and hid the sun. From the high peaks of the Sierra Nevada they were seen filling the valleys below and the air above as far as a powerful field glass could bring the insects within focus. The chinch bug in countless mil- lions infests the grain fields over towns, counties, and States. The army worm moyes at times in solid masses, destroying the crops in its path. THE REPRODUCTIVE CAPACITY OF INSECTS. Insects are enormously productive, and, were the progeny of one pair allowed to reproduce without check, they would cover, in time, the entire habitable earth. 1 Our Insect Enemies, by J. A. Lintner. Sixteenth Annual Report, New Jersey State Board of Agriculture, 1888-89, pp. 293, 294. VALUE OF BIRDS TO MAN. 29 The rapidity of propagation shown by some insects is per- haps without a parallel in the animal world. In order to give some idea of the powers of multiplication of the Colorado potato beetle, the Canadian Entomologist states that all its transformations are effected in fifty days; so that the result of a single pair, if allowed to increase without molestation, would in one season amount to nae te over sixty millions.’ (See Appendix.) Beetles Speaking of the great power of multiplication shown by plant lice or aphids, Dr. Lintner says that Professor Riley, in his studies of the hop vine aphis (Phorodon humuli), has observed thirteen generations of the species in the year. Now, if we assume the average number of young produced by each female to be one hundred, and that every individual attains maturity and produces its full complement of young (which, however, never occurs in nature), the number of the twelfth brood alone (not counting those of all of the preceding broods of the same year) would be 10,000,000,000,000,000,000,000 (ten sextillions) of indi- viduals. Where, as in this instance, figures fail to convey any adequate conception of numbers, let us take space and the velocity of light as measures. Were this brood mar- shalled in line with ten individuals to a linear inch touching one another, the procession would extend to the sun (a space which light traverses in eight minutes), and beyond it to the nearest fixed star (traversed by light only in six years), and still onward in space beyond the most distant star that the strongest telescope may bring to our view, — to a point so inconceivably remote that light could only reach us from it in twenty-five hundred years. The remotest approach to such unchecked multiplication on the part of this insect might paralyze the hop-growing industry in one season. While the aphids may represent the extreme of fecundity, there are thousands of insect species the unchecked increase of any one of which would soon overrun a continent. Mr. A. H. Kirkland has com- 1 Report of Townend Glover, entomologist, in Annual Report of the United States Commissioner of Agriculture, 1871, p. 74. 9f 30 USEFUL BIRDS. puted that the unrestricted increase of the gipsy moth would be so great that the progeny of one pair would be numerous enough in eight years to devour all the foliage in the United States. THE VORACITY OF INSECTS. Many insects are remarkably destructive because of the enormous amount of food which they must consume to grow rapidly to maturity. Many caterpillars daily eat twice their weight of leaves; which is as if an ox were to devour, every twenty-four hours, three-quarters of a ton of grass.! This voracity and rapid growth may be shown by the statement of a few facts. A certain flesh-feeding larva will consume in twenty-four hours two hundred times its original weight ; a parallel to which, in the human race, would be an infant consuming, in the first day of its existence, fifteen hundred pounds of food. There are vegetable feeders, caterpillars, which during their progress to maturity, within thirty days, increase in size ten thousand times. To equal this remarkable growth, a man at his maturity would have to weigh forty tons. In view of such statements, need we wonder that the insect world is so destructive and so potent a power for harm ?? Mr. Leopold Trouvelot, who introduced the gipsy moth into this country, was occupied for some time in raising silkworms in Medford, Mass. He made a special study of the American silkworm (7elea polyphemus). Regarding its food and growth he says :— It is astonishing how rapidly the larva grows, and one who has had no experience in the matter could hardly believe what an amount of food is devoured by these little creatures. One experiment which I made can give some idea of it. When the young worm hatches out, it 1 A probable cause for this voracity in the case of herbivorous larve is that the stomachs do not have the power of dissolving the vegetable matter received into them, but merely of extracting from it a juice. This is proved both by their excrement, which consists of coiled-up and hardened particles of leaf, which, when put into water, expand like tea, and by the great proportion which the excrement bears to the quantity of food consumed (Kirby and Spence’s Ento- mology, p. 259). 7 Our Insect Enemies, by J. A. Lintner. Sixteenth Annual Report, New Jersey State Board of Agriculture, 1888-89, p. 295. “(snmeqdyog vaj2y) YO WIOMATIG uUBNeWY 2=4YL—"] ALW Id VALUE OF BIRDS TO MAN. dl weighs one-twentieth of a grain; when ten days old, it weighs one-half a grain, or ten times the original weight; when twenty days old, it weighs three grains, or sixty times the original weight ; when thirty days old, it weighs thirty-one grains, or six hundred and twenty times the original weight; when forty days old, it weighs ninety grains, or eight- een hundred times the original weight ; and when fifty-six days old, it weighs two hundred and seven grains, or forty-one hundred and forty times the original weight. When a worm is thirty days old, it will have consumed about ninety grains of food; but when fifty-six days old it is fully grown, and has consumed not less than one hundred and twenty oak leaves, weighing three-fourths of a pound; besides this, it has drunk not less than one- half an ounce of water. So the food taken by a single silkworm in fifty-six days equals in weight eighty-six thousand times the primitive weight of the worm. Of this, about one-fourth of a pound becomes excrementitious matter, two hundred and seven grains are assimilated, and over five ounces have evaporated. What a destruction of leaves this single species of insect could make, if only a one-hundredth part of the eggs laid came to maturity! A few years would be sufficient for the propagation of a number large enough to devour all the leaves of our forests.! When we consider the dangers arising from the immense numbers, fecundity and voracity of insects, the fact that insects new to cultivated crops are continually appearing becomes a source of grave apprehension. THE GREAT LOSS TO AMERICAN AGRICULTURE BY INSECT RAVAGES. Economic entomologists, who are constantly increasing our knowledge regarding insect pests, discover every year new species attacking important crops or trees. Dr. Lintner made a list of the insects injuring apple trees in the United States, which was published in the appendix to his first report as entomologist of New York State. It contained one hundred and seventy-six species, while large though lesser numbers have been found on the plum, pear, peach, and cherry. The study of the insect enemies of the forest trees of the United States has not yet progressed far enough to deter- 1 The American Silkworm, by L. Trouyvelot. American Naturalist, Vol. I, p. 85. ae USEFUL BERDS: mine with approximate accuracy the numbers of insects that infest our forest trees. The forest insects of some sections of Europe have been studied longer, and the numbers of in- sects found injuring the principal trees are surprising. IXal- tenbach enumerates five hundred and thirty-seven species of insects, from central Europe, injurious to the oak; to the elm he ascribes one hundred and seven. The poplars feed two hundred and sixty-four species; the willows harbor three hundred and ninety-six ; the birches, two hundred and seventy; the alder, one hundred and nineteen; the beech, one hundred and fifty-four; the hazel, ninety-seven ; and the hornbeam, eighty-eight. Among the coniferous trees, the pines, larch, spruce, and fir, collectively, are attacked by two hundred and ninety-nine species of insects.? Dr. Packard enumerated over four hundred species which prey upon our oaks, and believed it not improbable that ultimately the number of species found on the oaks of the United States would be from six hundred to eight hundred or even one thousand.” The list of insects which feed on grasses, cereals, field and garden crops is very large and constantly growing, for it is continually receiving accessions from both native and foreign sources. The destructiveness of some of these insects is so enormous and widespread that the financial loss resulting therefrom amounts to a heavy annual tax on the people of the United States. Hence since the first settlement of the country the amount of this annual tax has been increasing. In 1854 the loss in New York State alone from the ravages of the insignificant wheat midge (Contarinia tritict) , as esti- mated by the secretary of the New York State Agricultural Society, was fifteen million dollars. Whole fields of wheat were left ungarnered. So destructive was this insect in the following years as to stop the raising of white wheat, and reduce the value of all wheat lands forty per cent.® 1 Die Pflanzenfeinde aus der Klasse der Insekten. 2 Insects Injurious to Forest and Shade Trees, by A. S. Packard. Fifth Report of the United States Entomological Commission, 1886-90, p. 48. 3 Report on the Rocky Mountain Locust, by A. S. Packard. Ninth Annual Report of the United States Geological and Geographical Survey of the Territo- ries, 1875, p. 709. VALUE OF BIRDS TO MAN. 33 In 1856, in Livingston County, New York, two thousand acres on flats which would have yielded thirty bushels of wheat per acre were not harvested because of the destruc- tive work of this insect.1 Dr. C. L. Marlatt, of the Bureau of Entomology of the United States Department of Agriculture, who has made careful calculations of the loss still occasioned by the Hessian fly (Mayeti- ola destructor) in the wheat-growing States, says that in comparatively few years does it cause a loss of less than ten per cent. of the crop. On the val- uation of the crop of 1904 this would amount to over fifty million dollars. Dr. Marlatt states that in the year 1900 the loss in the wheat-growing States pig. 16.—Hessian fy. from: this. tiny midge undoubtedly ap- . About twelve times nat et = ural size. proached one hundred million dollars. The chinch bug (lissus leucopterus) attacks many staple crops, and has been a seriously destructive pest in the Mississippi valley States for many years, where it injures chiefly wheat and corn. Dr. Shimer in his notes on this insect estimates the loss caused by it in the Mississippi valley in 1864 at one hundred million dollars,? while Dr. Riley gives the loss in that year as seventy-three million dollars in Illinois alone.* These are only a few of the extreme losses. Year after year the injuries from the depredations of this bug have amounted to many millions of dollars. The cotton worm (Alabama argillacea) has been known as a serious pest to the cotton crop for more than a century. The average loss in the cotton States from this caterpillar 1 First Annual Report on the Injurious and Other Insects of the State of New York, by J. A. Lintner, 1882, p. 6. 2 The Annual Loss occasioned by Destructive Insects in the United States, by C.L. Marlatt. Yearbook, United States Department of Agriculture, 1904, p. 467. 3 Report on the Rocky Mountain Locust, by A. S. Packard. Ninth Annual Report of the United States Geological and Geographical Survey of the Territories, 1875, p. 697. 4 First Annual Report on the Injurious and Other Insects of the State of New York, by J. A. Lintner, 1882, p. 7. 34 USEFUL BIRDS. for fourteen years following the civil war was estimated at fifteen million dollars per year.! In 1878 the injury to the cotton crop reached twenty-five million dollars, and later averaged from twenty-five million to fifty million dollars annually.2 Now a new enemy, the Mexican cotton boll weevil (Anthonomous grandis) , threatens equal destruction. The Rocky Mountain locust (Melanoplus spretus) began to destroy crops as soon as the country it inhabits was set- tled, and is still injurious. From time to time its enormous flights have traversed a great part of the Mississippi valley. It reached a maximum of destructiveness from 1874 to 1877, when the total loss from its ravages in Kansas, Nebraska, Towa, Missouri, and neighboring States, including injury by depression of business and general ruin, was estimated at two hundred million dollars.? In those years this devastating insect swept over the Missis- sippi valley. Wherever its vast flights alighted or its young developed, they destroyed nearly all vegetation, ruining great numbers of farmers, causing a famine in the land, and driving many people to emigration. This was an extreme calamity, such as is not likely to occur again. A still larger but more widely distributed loss from insect pests, however, is still borne annually by the American people. Dr. Lintner states his belief that the annual and periodical injury caused by cutworms in the United States is greater than that caused by the Rocky Mountain locust. In September, 1868, Prof. D. B. Walsh, editor of the American Entomologist, estimated that the country then suffered to the amount of three hundred million dollars annually from the depredations of noxious insects. By the census of 1875 the agricultural products of this country were valued at two billion, five hundred million dollars. Of this 1 Fourth Report of the United States Entomological Commission, by C. V. Riley, 1885, p. 3. 2 Report on the Rocky Mountain Locust, by A. S. Packard. Ninth Annual Report of the United States Geological and Geographical Survey of the Terri- tories, 1875, p. 591. 3 Report on the Rocky Mountain Locust, by Riley, Packard, and Thomas. First Report of the United States Entomological Commission, 1877, pp. 115-122. VALUE OF BIRDS TO MAN. 30 amount, Dr. Packard says that in all probability we annually lose over two hundred million dollars from the attacks of injurious insects. In the report of the Department of Agri- culture for 1884 (p. 324) the losses occasioned by insects injurious to agriculture in the United States, it is said, are variously estimated at from three hundred million to four hundred million dollars annually. Prof. C. V. Riley, in response to a letter of inquiry, in 1890, stated that no very recent estimate of the injury done by insects had been made; but that he had estimated, some time previously, that the injury done to crops in the United States by insects exceeded three hundred million dollars annually. Dr. James Fletcher, in his annual address as president of the Society of Economic Entomologists, in Washington, in 1891, stated that the agricultural products of the United States were then estimated at about three billion, eight hun- dred million dollars. It was believed that a sum equal to about one-tenth of this amount, or three hundred and eighty million dollars, was lost annually through the ravages of injurious insects. It is evident that, in spite of the improved methods of fighting insects, the aggregate loss from this source increases in proportion as the land under cultivation increases. The most recent estimate of the loss occasioned by insect injury in the United States which has come to my notice is that of Dr. C. L. Marlatt, who by careful estimates approxi- mates the percentage of loss to cereal products, hay, cotton, tobacco, truck crops, sugars, fruits, forests, miscellaneous crops, animal products, and products in storage. Dr. Marlatt attributes an annual loss of eighty million dollars to the corn crop alone, and approximates the loss to the wheat crop at one hundred million dollars each year. The injury to the hay crop is estimated at five hundred and thirty thousand dollars, while the codling moth alone is be- lieved to injure fruit crops to the amount of twenty million dollars annually. This statement, based on the value of farm products as given in the reports of the Bureau of Statistics of the United 36 USEFUL BIRDS. States Department of Agriculture for 1904, gives the loss from insect depredations for that year as seven hundred and ninety-five million, one hundred thousand dollars; and this is believed to be a conservative estimate of the tax now im- posed by injurious insects on the people of the United States, without reckoning the millions of dollars that are expended annually in labor and insecticides in the fight against insects.1 LOSSES BY INSECT RAVAGES IN MASSACHUSETTS. The proportion of this loss that Massachusetts is called upon to bear has not received the attention that it deserves. Some figures, however, may be given. In 1861 the army worm (probably /leliophila unipuncta) swept eastern Mas- sachusetts. The damage done to crops, according to Dr. Packard, exceeded five hundred thousand dollars.2, We have no estimates of the loss occasioned by more recent invasions of this insect. Prof. C. H. Fernald? estimates that an amount of cranberries equal to one-third the possible crop of the Cape Cod region is annually destroyed by insects. Thus a sum not less than five hundred thousand dollars is yearly lost to the people of that region. In 1890 Dr. Henry H. Goodell, president of the Massa- chusetts Agricultural College, stated that it was costing the farmers of the United States two million dollars, and the farmers of Massachusetts eighty thousand dollars, each year, to hold the Colorado potato beetle in check by the use of Paris green.* In 1901 Hon. J. W. Stockwell, then secretary of the Massachusetts State Board of Agriculture, asked me to esti- mate the annual loss to the Commonwealth through the ray- ages of insect pests. My estimate, which seemed to me at 1 The Annual Loss occasioned by Destructive Insects in the United States, by C. L. Marlatt. Yearbook, United States Department of Agriculture, 1904, p. 464. 2 First Report on Injurious and Beneficial Insects of Massachusetts, by A. S. Packard. Annual Report of the Massachusetts State Board of Agriculture, 1870, Part I, p. 353. 3 In Bulletin No. 19 of the Hatch Experiment Station of the Massachusetts Agricultural College, Professor Fernald gives statistics of the cranberry crop, and evidence from which his estimate is made. 4 Agricultural Education, by H. H. Goodell. Sixth Annual Report of the Rhode Island State Board of Agriculture, 1891, p. 186. VALUE OF BIRDS TO MAN. 37 the time a most safe and conservative one, was three million, one hundred thousand dollars. Mr. Stockwell also asked Dr. H. T. Fernald and Mr. A. H. Kirkland, both expert economic entomologists, to make, independently, a similar estimate. Their replies follow, showing how they made up their figures. These gentlemen had every facility for obtain- ing knowledge of insect injury in the Commonwealth. It will be seen that their approximations considerably exceeded my own. Dr. H. T. Fernald says : 1 — Years ago a number of experts, figuring independently, came to the conclusion that for farm, market-garden and orchard erops the loss by the attacks of insects in an average year would represent one-tenth of the value of the crop, or about two million, six hundred thousand dollars for Massachusetts. Recently, however, prominent entomologists have expressed the opinion that this per cent. is toolow. Three factors have caused this change: first, the concentration of crops of the same kind into large contiguous acreage; second, the introduction of over one hundred pests from foreign countries, which have been here long enough to make their presence seriously felt; and third, the great reduction in the number of insectivorous birds. I believe it will be entirely safe to take fifteen per cent. of the crop valuation of Massachusetts, and that you will be sufficiently conserva- tive in using that amount as representing part of the damage. I have never seen a cherry tree killed by plant lice, yet I have often seen lice so abundant on cherry trees as to much reduce the crop, which is true of a large proportion of our crops; and it is loss of this kind which is covered by the fifteen per cent. estimate, . . . but how are we to place a money value on the defoliation of an elm tree unless it be repeated year after year until the tree dies? I would be inclined to add, to the fifteen per cent. estimate already given, two hundred and fifty thousand dollars for labor, apparatus, poison, etc., used in the fight against insects, and another two hundred and fifty thousand dollars to cover damage actually done, but which cannot be reduced to figures, making a total yearly damage of four million, four hundred thousand dollars for Massachusetts. Mr. Kirkland says : ! — The best figures available for estimating the loss caused by pests in this State are those of the 1895 census. From the report of this census I have taken figures giving the value of certain crops notably attacked 1 Report of Secretary J. W. Stockwell, Annual Report of the Massachusetts State Board of Agriculture, 1901, pp. xiii, xiv. 38 USEFUL BIRDS. by insects, and have estimated in each case the probable average yearly reduction in value caused by these pests. The data used are given be- low. I have tried to make a conservative estimate in the case of each product, since, to have any value, such an estimate should fall below rather than above the actual amount. Even then the figures afford material for serious reflection on the part of agriculturists. Percentage Value Amount eEENOR, of Product. iy ec of Damage. Greenhouse products, of betes $1,749,070 10 $174,907 00 Hothouse and hotbed products, . : 97,227 5 4,861 35 Nursery products, . 3 3 é 182,906 15 27,4385 90 Wood products,. . . . = 2,780,314 20 556,062 80 Cereal products, : A 5 ar it 1,104,578 5 55,228 90 Fruits, berries, and nuts, : : 2,850,585 25 712,646 25 Hay and fodder crops, . ‘ F ‘ 12,491,090 10 1,249,109 00 WEESIAIDIES, 6 Go 8 6,389,533 20 1,277,906 60 Tobacco, AE ee et ees lee 544,968 10 54,496 80 Property : — Fruit trees, vines, etc., . : 0 5 7,924,878 10 792,487 80 Totals, ; Ty TO coe ee $36,115,149 - $4,905,142 40 Assuming the accuracy of these data, and exclusive of the damage wrought by insects to our woodlands, street trees, parks, etc., we have in round figures five million dollars as the average annual damage from insects to agricultural products and property in this Commonwealth. While the cost of insect injury is enormous, the expense of fighting injurious insects in the attempt to protect crops and trees from their ravages is proportionately great. In recent years Massachusetts has had, and is still having, a costly experience in attempting to control or suppress an imported insect. The gipsy moth (Porthetria dispar), a well-known pest of European countries, was introduced into Medford, Mass., by Mr. Leopold Trouvelot, in 1868 or 1869. Twenty years later the moths had increased in numbers to such an extent that they were destroying the trees and shrubbery in that section of Medford where they were first liberated. They swarmed over the houses of the inhabitants, invaded their gardens, and became such a public nuisance that in 1890 the Legislature appropriated fifty thousand dollars for their extermination. It was learned within the next two years that the moths had spread over thirty towns. The State eu il "sce PEO: EER ao. b=. aR: gh ‘ Eo een age Te ett Pes ions. sot aed “ POEs: ‘ Po ae ee a: [Py # Menotomy Rocks Park, Arlington, devastated by (After Kirkland.) PLATE II.— The Destructiveness of the Gipsy Moth. ~ ; caterpillars, June, 190 a. A os ae (From the annual odland Parks. PLATE III.— Expensive Work of destroying the Eggs of the Gipsy Moth in Wo >) report of the Massachusetts State Board of Agriculture, 1898 ee Ta Te <..- , VALUE OF BIRDS TO MAN. ag Board of Agriculture was given charge of the work in 1891, and over one million dollars were expended within the next ten years in the attempt to exterminate the insect. As at the expiration of that time all the larger moth colonies had been destroyed, the Legislature, deeming further expendi- ture unwise, gave up the work, despite the protest of the Board of Agriculture, and its prediction that a speedy rise of the moth would follow the cessation of concerted effort against it. This prediction has been abundantly fulfilled, and the policy of the Board has been fully justified. Dr. Marlatt, who in 1904 visited the region infested by the moth, reported to the Bureau of Entomology at Washington that the people of the infested district were then fighting the insect at a greater annual cost than that formerly assumed by the State. Since the State gave up the work, a single citizen, Gen. Samuel C. Lawrence of Medford, has expended over seventy-five thousand dollars to protect the trees and plants on his estate. Finally, in 1905 the Legislature was obliged to renew the fight, and appropriate the sum of three hundred thousand dollars for work against both this insect and another im- ported pest, —the brown-tail moth (Huproctis chrysorrhea) , which had been introduced into Somerville some time in the latter part of the nineteenth century. The State has also been obliged to call on municipalities and individuals to assist in the work of suppressing these moths, at an annual expense to those concerned which ex- ceeds all previous yearly expenditures for this purpose. These insects have gained a much larger territory than ever before, and thousands of acres of woodland have been attacked by them during the present year (1905), and many pine and other trees have been killed. The gipsy moth has been found in Rhode Island, Connect- icut, and New Hampshire, and the brown-tail moth is also spreading into other States. The prospect now seems to be that our protective expenses against these two insects, as well as the injury done by them, will increase constantly ; and that other States also will be put to similar expense, with no prospect of permanent relief 40 USEFUL BIRDS. save by such checks as may come, in time, through natural causes. In view of the dangers threatened by insect increase and voracity, how fortunate it is for the human race that so many counter-checks are provided against the multiplication of these destructive creatures. If we could increase by so much as one per cent. the efficiency of the natural enemies of insects, a large proportion of the loss occasioned by insect injury might be saved. Hence the importance of the study of these natural enemies, among which birds hold a high place. THE CAPACITY OF BIRDS FOR DESTROYING PESTS. When we realize the losses that insects are capable of in- flicting, we see at once that birds, in their capacity of insect destroyers, continually operate to prevent the destruction of some of our most important industries. If birds are present in sufficient numbers, they will prevent the excessive increase of any kind of a pest which they will eat. The number of birds required to accomplish this highly desirable end need not be very large in comparison with the number of insects; for each bird can devour an incredible number of insects, and the young birds in the nests require more of this food, in proportion to their size, than do their parents. The Digestion of Birds. The digestive organs of birds are so constructed and equipped that they can both contain and dispose of a very large quantity of food. The stomachs of many species quickly separate the indigestible portions of the food from the digestible parts, and the former are thrown out of the mouth, thus relieving the stomach of much worthless mate- rial, and enabling the bird immediately to consume more food. The alimentary canal (including the crop, gullet or cesophagus, the first division of the stomach or proventricu- lus, the gizzard, gigerium or second division of the stomach, the intestine and the cloaca) consists of a tube reaching from mouth to anus, conveying the food. The nutritious qualities of the food are drawn off by the lacteals as it passes; the VALUE OF BIRDS TO MAN. 41 refuse is voided. Thisis digestion. The food is often manip- ulated, crushed, or divided by the beak. It then receives saliva from the mouth, and passes through the pharynx into either the gullet (a muscular and membranous tube) or crop (a pouch), as the case may be, organs capable of great distention, and connecting with the first division of the stomach. Here, then, is the first receptacle of the food. Birds of prey, Herons and some other large birds sometimes fill the gullet to the very mouth, while awaiting the digestion of the food in a stomach already full. The Pelicans have also another great receptacle or pouch, ex- ternal and beneath the beak, where a store of food can be carried. Many of the smaller birds also are able, after filling the stomach, to stow away a still larger supply of food in the gullet. The stomach is large, and usually capable, by distention, of contain- ing a considerable quantity of food. The food passes from the gullet or the crop to Teles Anan: the proventriculus or glandular portion of eae ees ae = bird, reduced; afte the stomach. This is where the process Audubon. a,),gul- let or esophagus; ¢, proventriculus; 4d, ingluvial, and proventricular secretions, the — gizzard; e, fh, in- testine; 7, cloaca. of digestion begins. Mixed with salivary, food next passes to the gizzard or muscular division of the stomach, where the food grist is ground fine. Among seed-eating birds the heavy, powerful muscles of this portion of the stomach are, with the rough, calloused stomach lining, assisted in their work by sand and gravel which are swallowed. This mineral matter takes the place of teeth in grinding the food. In vegetable-feeding birds the intestine is very long and much coiled, while the digestive tract is generally shorter and simpler in the flesh-eating and fish-eating species. All the processes of digestion are remarkably rapid. The sali- vary glands, the liver and the pancreas all quickly pour their copious secretions into the alimentary canal; the food is chylified after impregnation with the biliary and pancreatic 42 USEFUL BIRDS. fluids ; the chyle is drawn off by the lacteals, and the residue is excreted. The vigor, perfection, and rapidity of these processes in insect-eating birds are such as might be expected among animals of such high temperature, perfect respiration, and rapid circulation. The various dilations of the digestive tract serve well their purpose of enabling the bird to consume the large amount of food necessary for its maintenance. Digestion is partic- ularly rapid in the growing young of most birds, for they require not only food sufficient to sustain life, but an extra supply as well to enable them to increase daily in size, and to grow, in a few days, those wonderful appendages that we call feathers. The Growth of Young Birds. The growth of many birds from the egg to the hour of flight requires less time than is needed by some insects to reach the flight stage. It is most significant that young birds can develop as rapidly as can many in- sects on which they feed, for it shows how readily, under favorable conditions, the increase of birds might keep proportion- ate pace with that of insects. Weed and Dearborn, in their interesting manual, en- Tied om eens. titled “Birds in their Relations to Man,” naked, blind,andhelp- state that they watched four young Song less, with mouth open G for food. Reducea; Sparrows that were out of the nest on the atten Derek: eighth day. Mr. Owen records another instance where a brood of young Song Sparrows were fledged and left the nest within the same period.! Probably this is exceptional ; but many of the smaller birds rear their young from the egg to the first flight within two or three weeks. Mr. Owen found that on one particular day this family of five young Song Sparrows increased in average weight forty-eight per cent., while the smallest bird gained fifty-five per cent. in a single day. The young of perching birds (Insessores) come into the world tiny creatures, either naked or covered with down, ' A Family of Nestlings, by D. E. Owen. The Auk, Vol. XVI, No. 3, July, 1899, pp. 221-225. VALUE OF BIRDS TO MAN. 43 blind, and helpless; yet in a few days, or at most a few weeks, they have grown to nearly the size of their parents, and produced a_ perfect suit of feathers, including the strong quills of wings and tail. In a few weeks more they are able to begin a journey of hun- dreds or thousands of miles over land and sea, in their first migration. The young of precocial birds, such as Grouse, Snipe and Plover, are able to run about soon after they are hatched. Young Grouse learn to fly Fig. 19.— Young Cedar Birds, less than three when quite small, but they peels, develop more slowly than do the young of the smaller altricial birds. It is difficult, therefore, to determine the amount of food they require, as they leave the nest at once and wander from place to place, picking up their own food. The young of the altricial perching birds, however, re- main quite helpless in the nest until nearly fledged, affording an Fig. 20.— Young Grouse, just from the egg, but able excellent opportunity niga for the investigator to determine the amount and character of their food, and to watch the progress of their development. We can learn how much food such young birds require by feeding them in confinement. 44 USEFUL BIRDS. The Amount of Food required by Young Birds. It seems necessary to the health and comfort of the nest- ling bird that its stomach be filled with food during most of the day. Nearly half a century ago Prof. D. Treadwell called attention to the great food requirements of the young Robin. Two young birds from the nest were selected for his experiment. One soon died of starvation, as the supply of food given them at first was much too small. The food of the re- maining bird was gradually Fig. 21.—A young Woodcock, readyto jnecreased from day to day, leave the nest. P p until on the seventh day it was given thirty-one angleworms; but there was no increase in its weight until, on the fourteenth day, it received sixty- eight worms, weighing, all told, thirty-four pennyweights.! Later the same bird ate nearly one-half its own weight of beef in a day. A young man eating at this rate would consume about seventy pounds of beefsteak daily. The Robin even when full grown required one-third of its weight of beef daily. Mr. Charles W. Nash fed a young Robin from fifty to seventy cutworms and earthworms a day for fifteen days. While experimenting to see how many cutworms the bird would eat in a day, he fed it five and one-half ounces of this food, or one hundred and sixty-five cutworms. As the Robin weighed but three ounces in the morning, it must Fig. 22.— Young Robins, in the nest. 1 The Food of Young Robins, by D. Treadwell. Proceedings of the Boston Society of Natural History, Vol. VI, pp. 396-899. VALUE OF BIRDS TO MAN. 45 have eaten, during the day, a quantity one and five-sixths times its own weight.! Three young Robins, about ten days old, fed by their parents, were watched by Weed and Dearborn. By an in- genious method of weighing and calculating, the observers arrived at the conclusion that apparently there was eaten a daily amount equal to more than half the birds’ own weight.? Mr. Daniel E. Owen kept a young Hermit Thrush, which ate regularly half its weight of raw steak daily, and would, he says, probably have eaten as much more had it been fed oftener.® In 1895 two young Crows were kept and fed by Messrs. A. H. Kirkland and H. A. Ballou, then my assistants, from August 7 to September 2, when one bird was killed by accident. The survivor was kept until September 14, when it was killed to determine some points regarding digestion. These birds were confined in a large cage or enclosure in an insectary, and were also allowed access during the day to an enclosed yard, which they reached through the window. This gave them considerable exercise. A careful record was kept of most of their food. Never- theless, they occasionally picked up some sprouted grain in the yard, and probably a few insects that could not be re- corded or weighed. For this reason the quantity of the daily food supply recorded is probably, on the average, too low, or, in other words, on the safe side. Some of the smaller animals fed to the birds (toads, frogs, and salamanders) were not always weighed, but they were measured and could be compared with others of known weight, so that the weight Was approximated closely. The birds were well grown when they were first received ; but the amount of food at first given them probably was not sufficient for their needs, as their weight did not increase, although they were fed a variety of both vegetal and animal 1 Birds of Ontario in their Relation to Agriculture, by Charles W. Nash. Toronto, Department of Agriculture, 1898, p. 22. * Birds in their Relations to Man, by Clarence M. Weed and Ned Dearborn, 1903, p. 65. * Notes on a Captive Hermit Thrush, by Daniel E. Owen. The Auk, Vol. XIV, No. 1, January, 1897, pp. 1-8. Ab USEFUL BIRDS. food. They were designated by number. On August 20 No. 1 weighed seventeen ounces and No. 2 fourteen ounces. That day the two birds had two ounces of tomato, five ounces of sweet corn, fifty grasshoppers (about three-fourths of an ounce), —in all, nearly eight ounces, and they also had free access to some grain in the yard. As their weight remained the same, they were fed the next day one-half ounce of tomato, one ounce of corn, one ounce of muskmelon, five ounces of meat, one ounce of beets, and fifty grasshoppers, —in all, fully nine ounces. An apple also was eaten to some extent, and there was still some grain in the yard. Nevertheless, each bird lost about an ounce in weight that day. They were fed at about the same rate the following day, and, as they were losing weight, they were given on the 23d two ounces of melon, all the grasshoppers that could be collected near their place of confinement, four frogs, a sala- mander, two ounces of tomato, and five ounces of corn. On this diet the Crows regained some of the weight they had lost, weighing the next morning sixteen and one-half and thirteen and one-half ounces respectively. On the 24th they were fed more than twelve ounces, and the larger bird lost half an ounce and the smaller gained about the same weight. On the 25th they received over seventeen ounces of food, the smaller bird gaining another half.ounce and the larger bird remaining the same. No. 1 now weighed sixteen ounces and No. 2 fourteen and one-half ounces. The next day, with twelve ounces of food, the smaller bird lost one-half ounce and the larger bird made no gain. Evidently where any gain was made by one bird on this amount of food the bird either got more than its share, or found some food in the yard. On August 28 nearly twenty-seven ounces of food were given. This was all vegetal matter except thirty grass- hoppers (one-third of an ounce). J¢ was all eaten, and apparently all needed, for neither bird increased in weight, No. 1 losing half an ounce. It seemed evident throughout the experiment that the birds required much animal food, and when vegetal food alone was given, a larger amount VALUE OF BIRDS TO MAN. 47 than usual was needed. The next day about twenty ounces of food, containing a large proportion of animal matter, were given; and on August 30 the larger bird had again regained its weight of seventeen ounces, while the other held its own. So far the experiment seemed to show that when they were fed from twenty to twenty-five ounces of a ration containing both animal and vegetable food the birds held their own or gained slightly ; but if fed less than twenty ounces of this ration, one or both of the birds fell off in weight. After the death of one bird the other and all its food were weighed daily. All opportunity to secure scattered grain or other food than that weighed was denied. The greatest weight reached by this bird was eighteen and one-half ounces on September 13, on which date it was fed as much corn, cucumber, and tomato as it cared to eat, also a frog, two toads, twenty-seven grasshoppers, thirty-one borers, eight beetles, and eighteen crickets. The record of the twelve days during which this bird was alone seems to show that less than eight ounces of food daily was hardly sufficient for its needs, as on a less amount it tended to lose in weight, while when the amount was increased to ten ounces or more the tendency toward a daily gain in weight was marked. When the quantity of food given these birds was largely reduced in any one day, there was a corresponding reduction in their weight. On September 13 the larger Crow was given only two ounces of tomato, fifty-six grasshoppers, twelve crickets, and a little grain, —in all, not much over three ounces of food. The next morning it had lost one and one-half ounces in weight. The fact that a bird, while in confinement and without a great amount of exercise, could lose nearly ten per cent. of its weight in a single day, even when fed a quantity of food equal to about one-sixth its weight, shows how dependent birds are upon their supply of food. If this single experiment can be regarded as conclusive, we may assume that young Crows, when fledged, absolutely require a daily amount of food equal to about one-half their own weight; and it is evident that they will consume much more than this to their own advantage if they can get it. It 48 USEFUL BIRDS. seems quite probable that a young bird at liberty, depend- ing largely on its own exertions to procure food, and thus exercising more than in confinement, would require still more food to repair the consequent extra waste of the tissues. Others have made similar experiments with Crows in con- finement. Samuels says that he has kept specimens in cap- tivity, and has proved by observation that at least eight ounces of such food as frogs, fish, etc., are eaten daily by our common Crow. He says that a Crow can live on a very limited allowance, but believes eight ounces to be a reasonable amount. He leaves us to infer that he is speaking of adult Crows, which undoubtedly require less food than their grow- ing young.! Weed and Dearborn kept a wounded adult Crow in a small box, twelve by thirteen by twenty inches. In these cramped quarters, where the bird could hardly stretch its wings, it ate fish for three days in succession at the rate of four and more than a quarter of its own weight, or about half what our young Crows ordinarily required.” eighty-three hundredths ounces per day, Probably the amount of food eaten by this captive bears about the same proportion to the quantity eaten by a vigor- ous Crow at liberty that the food taken by a prisoner in solitary confinement, or that consumed by a sedentary clerk, bears to the amount required by a strong man at hard labor, or by a prize-fighter in training. The amount of food taken by young birds could not be disposed of by such limited powers of digestion as are given to other animals. What a wonderful contrast is presented between the quantity of food required by the hot-blooded, quick-pulsing, active bird, and that needed by the cold- blooded vertebrates. Many reptiles can live for months without food. Even some of the mammals do not eat at all during their hibernation. : ' Birds of New England, by Edward A. Samuels, 1870, p. 359. * Birds in their Relations to Man, by Clarence M. Weed and Ned Dearborn, 1903, p. 61. VALUE OF BIRDS TO MAN. 49 The Time required for Assimilation of Food. If we assume that the stomach and cesophagus of a young Crow can contain but an ounce of food, then the bird would be required to digest from eight to twelve meals a day, according to its appetite and opportunity. The question at once arises, How can any digestive system complete such a task? Experiments were made with our young Crows to determine the time required for digestion. The birds were kept without food until the stomach and intestines were empty. They were then fed insects’ eggs, in the belief that some parts of the shells would escape the grind- ing processes of the stomach and be voided in the excreta. Sub- sequent occurrences justified this belief. Ten experiments of this kind were made with the two birds. Fig. 23.— Young Crows, well From the time when the birds ee began to feed until the time when the first eggshells were dropped in the excreta there elapsed, on the average, one hour, twenty-nine minutes and forty-five seconds. The shortest time was forty-eight minutes, and the longest one hour and fifty-four minutes. This, it should be noted, was not merely the time that the food remained in the stomach, but the full interval occupied in digesting and assimilating it, for within this period at least a part of the food had passed the entire digestive tract. In most cases all evidence of the food used in the experi- ment had disappeared from the excreta in from two to two and one-half hours. If we contrast this with the slower digestion of man, we shall see how birds readily dispose of more meals each day than a man is capable of digesting. To learn how long food remains in a Crow’s stomach, it would be necessary to kill a large number of Crows, each being killed at a longer or shorter interval after it had filled its empty 50 USEFUL BIRDS. stomach. I am not aware that this has ever been done, but have no doubt that the majority of the farmers of Massachu- setts would not object to the destruction of a considerable number of young Crows for this purpose, or any other. The Crow which was accidentally killed had fed freely upon grasshoppers for twenty minutes, and died ten minutes after the close of the feeding period. An examination of the alimentary canal showed the stomach to be quite full, but less than fifty per cent. of its contents, consisting mainly of the hard parts of wings, thoraces, and legs, was in a con- dition to be recognized. The strongly chitinized pronota and hind femora of the grasshoppers offered the most resist- ance to the digestive processes. The other fifty per cent. of the stomach contents had been so finely divided, in the very brief time that it had been in that receptacle, that one would hardly have cared to express a positive opinion as to its identity. This condition of stomach contents is not unusual. In examining the contents of birds’ stomachs we often find more than fifty per cent. of the food so finely comminuted and mixed as to be practically unrecognizable. The presence of insects in a bird’s stomach is sometimes made known by a mere mandible or some other recognizable por- tion, which has resisted for a time the grinding of this remark- able digestive organ. It is significant, however, that, in the thirty minutes intervening between the beginning of a feeding period and death, the stomach had thoroughly pulverized half the food eaten. This experiment was carried farther with the second Crow. On September 14 the only food materials given the bird were six crickets and eleven grasshoppers. These it ate within four minutes, and thirty minutes later it was killed. Only about twenty-five per cent. of the stomach contents was recognizable, but this is not all. The alimentary canal was thirty-six inches in length, and in the intestine at a distance of from twelve to fifteen inches from the stomach, and again at twenty-five to twenty-eight inches from that organ, were found a few small pieces of the fore wings of the grasshoppers. As the bird had not been fed since 4 o’clock in the afternoon of the previous day, these remains probably PLATE IV.—Red-eyed Vireo feeding Young. (Photograph by C. A. Reed.) VALUE OF BIRDS TO MAN. a) came from the insects fed to it not more than thirty-three minutes before it was killed. In summing up the results, Mr. Kirkland says: “I think, from what we have seen, that we might expect to find the gizzard empty in from one to one and one-half hours.” Such an experiment should be carried farther, but enough was learned to show that the stomach of a young Crow prob- ably can be filled with food and emptied of the digested material from eight to twelve times a day during the long days of midsummer, when their appetites are at their best. Digestion in some of the smaller birds is doubtless even more rapid, for they are enabled to dispose of a still larger amount of food in proportion to their size. Mr. Owen in- forms us that the time required for a blueberry to traverse the digestive tract of his Hermit Thrush was practically an hour and a half. Mr. C. J. Maynard once told me that in a similar experiment a Cedar Bird passed the residue of food within thirty minutes after the food was taken. Weed and Dearborn found that a blackberry was digested by a young Cedar Bird in half an hour. The Number of Insects eaten by Young Birds in the Nest. The remarkable appetites of young birds keep their de- voted parents very busy supplying food most of the time from morning till night. The mother bird spends practically all her time either in searching for food, brooding, protect- ing, and feeding the young, or cleaning the nest (for all the smaller birds that nest openly are obliged to dispose of the excreta of their young, that it may neither befoul the nest nor betray its location to their enemies). Most of the visits made by the old birds to the nest during the day are for the dual purpose of feeding the young and keeping the nest clean. Records kept of the number of these visits show the industry of the parent birds and the food capacity of the young. My assistant, Mr. F. H. Mosher, watched a pair of Red- eyed Vireos feeding their young on June 13, 1899. There were three nestlings, about one day old. At this early age the young of most small birds are fed mainly by regur- a2 USHFUL BIRDS. gitation. The parent birds swallow the food, and probably soften or partly digest it, ejecting it afterwards through their own mouths into the open mouths of the young. No attempt vas made, therefore, in this case, to determine the character or amount of the food, for fear of disturbing the parents and interrupting the regularity of the feeding. The birds were fed between 7 and 8 a.m. four- teen times; between 8 and 9, nine times; between 9 and 10, twelve times; between 10 and 11, seven times; between 11 and 12, sixteen times: between 12 and 1, nine times; between 1 and 2, twelve times: between 2 and 3, fifteen times; between 3 and 4, thirteen times; and be- tween 4 and 5, eighteen times. It will be seen that one or the other parent came to the nest with food one hundred and Fig. 24.— Billing, or feeding by re. twenty-five times im ten hours, gurgitation. From Samuels. even when the observer was watching near by; but this leaves four hours unaccounted for, to fill out the long June day, from dawn to evening. The feeding periods averaged less than six minutes apart dur- ing the time the birds were watched ; so it seems probable that, had the entire record for the day been kept, at least one hundred and fifty visits to the young would have been recorded. Young birds are fed oftenest at morning and even- ing, or during the hours when these Vireos were not watched. Mr. Mosher watched a pair of Rose-breasted Grosbeaks feeding their young on June 12, 1899. The young were nearly ready to leave the nest, as one of them stood on a branch near its edge. The nest was situated about fifteen feet from the ground, in the top of a slender white birch in the woods. The ground was well covered with hazel bushes about three and one-half feet high, which nearly concealed the observer. During the first half hour he made no record, as the birds were alarmed by his presence. As they com- VALUE OF BIRDS TO MAN. 53 menced bringing food regularly, he began the record at 6 AM. Between 6 and 7 they came to the nest fifty-two times ; between 7 and 8, forty-seven times; between 8 and 9, forty- three times; between 9 and 10, thirty times; between 10 and 11, thirty-six times; between 11 and 12, twenty-seven times ; between 12 and 1, thirty-two times ; between 1 and 2, thirty-eight times; between 2 and 3, forty-one times ; between 3 and 4, twenty-two times; between 4 and 5, fifty- eight times. The majority of the larve seemed to be leaf rollers from the oak trees. The female came on the average about three times to each two visits of the male; he was occupied much of the time in keeping other birds away from the vicinity of the nest. When the young of most insect-eating birds are well grown, the parents feed them whole insects just as they are picked up. With a glass, therefore, the insects brought by these Grosbeaks could be seen in the birds’ beaks. Their lusty youngsters were fed almost entirely on insect larvee or cater- pillars taken from the forest trees. On only four visits did either parent bird bring less than two larvee each. In eleven hours, then, they made four hundred and twenty-six trips, and must have fed their nestlings at least eight hundred and forty-eight larvee or caterpillars, and possibly more, as a bird has been observed to carry as many as eleven small cater- pillars on one visit to its young. In comparing the records of the two nests as given above, it is noticeable that the Grosbeaks fed the young much oftener than did the Vireos. This difference is due mainly to the fact that about the time the young birds are ready to fly, as were these Grosbeaks, they require much more food than when first hatched, as was the case with the Vireos. This, of course, is mainly owing to their increased size. The dif- ference in the number, age, and size of the young probably accounts largely for the great variation in the number of visits made to them by the parent birds, as recorded by dif- ferent observers. I have published some notes on the feeding of young Chickadees by the parent birds. Six visits were made to these young within thirteen minutes. In each case the bills 54 USEFUL BIRDS. of the parent birds were filled with a mass of small insects, mainly ants and plant lice, to which were added a few spiders. These young were also fully fledged.? The number of young in the nests of the smaller perch- ing birds is usually from three to five. In the case of the Chickadees mentioned above there were seven, and in another case that I have recently observed there were nine. Chick- adees and Wrens, because of their insectivorous habits and the large broods they rear, probably reach the maximum in the number of insects brought to their young. Dr. Judd gives an account of the feeding of some young House Wrens by the mother bird alone. These young Wrens were about three-fourths grown, and were visited one hun- dred and ten times in four hours and thirty-seven minutes. They were fed, during this time, one hundred and eleven insects and spiders. Among these were identified one white grub, one soldier bug, three millers (Noctuide), nine spiders, nine grasshoppers, fifteen May flies, and thirty-four cater- pillars. On the following day, in three hours and five min- utes, the young were fed sixty-seven times.” Professor Aughey states that during a locust year in Nebraska he saw a pair of Long-billed Marsh Wrens take thirty-one small locusts to their nest inan hour. — It is inter- esting to note that a pair of Rock Wrens that he watched took just thirty-two locusts to their nest in another hour.® Another observer is reported by Dr. Barton to have seen a pair of Wrens coming from their box and returning with insects from forty to sixty times an hour. In an exceptional hour they carried food seventy-one times. He estimates that at that time they took from the garden six hundred insects per day.* Few people, unfortunately, who are qualified for the task, 1 Two Years with the Birds on a Farm. Annual report of the Massachusetts State Board of Agriculture, 1902, p. 129. * The Birds of a Maryland Farm, by Sylvester D. Judd. Bulletin No. 17, United States Department of Agriculture, Division of Biological Survey, pp. 45, 46. 3 Notes on the Nature of the Food of Nebraska, Birds, by S. A. Aughey. First Report of the United States Entomological Commission, 1877, Appendix, p. 18. 4 Fragments of the Natural History of Pennsylvania, by Dr. B. S. Barton, Part I, 1799; p. 22. ; her in (From Amer sects nm th mass of i ting box at author’s window. wi .—Chickadee. Female, enter PLATE V j- Ing nes 5 beak thology.) nl can Or ” VALUE OF BIRDS TO MAN. 55 have both the time and patience to watch the feeding of young birds for an entire day. Dr. C. M. Weed and Mr. W. F. Fiske, however, have accomplished this feat. They watched the nest of a Chipping Sparrow from 3.40 a.m. to 7.49 P.M. on June 22,1898. The valuable record of these observations Fig. 25.— Chipping Sparrow feeding young. shows that these two birds, having only three young in the nest, visited it at least one hundred and eighty-two times during that day; and Dr. Weed says that they made almost two hundred trips, although some of the trips evidently were made to furnish grit for grinding the food. The birds were busy from daylight to dark, with no long intermission. The food, so far as identified, consisted largely of caterpillars. Crickets and crane flies were seen, and it was believed that a great variety of insect food was brought. ! A committee on useful birds, selected from the Pennsyl- vania State Board of Agriculture, reported that an observer had watched the nest of a pair of Martins for sixteen hours, from 4 A.M. until 8 p.m., to see how many visits the parent birds made to the young. One hundred and nineteen visits were made by the male and one hundred and ninety-three by the female.” 1 The Feeding Habits of the Chipping Sparrow, by C. M. Weed. Bulletin No. 55, New Hampshire College Agricultural Experiment Station, 1898. 2 C. C. Musselman, in Agriculture of Pennsylvania, 1887, p. 105. ob USEFUL BIRDS. The number of insects consumed daily by young birds in their nests is difficult of estimation, because of the variation in size among insects and the great difference in size between the mature insect and the newly hatched larva. Five hun- dred of the young larve of a moth might occupy less space in the stomach of a bird than would the moth itself; while a thousand aphids might take no more room than a full-grown caterpillar. Nevertheless, many estimates have been made, based on known data, as to the number of insects fed to young birds. The introduced House Sparrow (Passer domesticus), com- monly called the English Sparrow, undoubtedly eats fewer insects, here, in proportion to the rest of its food than any of our smaller native birds. The young are fed very largely on grain and other non-insectivorous food. Still, a Sparrow’s nest in the city of Paris is said to have contained seven hun- dred pairs of chafer wing-cases.! Mons. P. Pélicot gives a table of the estimates, made by several foreign authors, of the numbers of insects eaten by Sparrows in a given time. These approximations vary from that of Blatin, who estimates that two Sparrows will destroy twelve hundred chafers in twelve days, to that of Tschudi, who believes that a single Sparrow will destroy fifteen hun- dred larvee within twenty-four hours.? Bradley mentions watching a bird’s nest and discovering that five hundred caterpillars were consumed in one day.? He says (according to Samuels) that a pair of Sparrows will destroy thirty-three hundred and sixty caterpillars for a week’s family supplies. A single pair of Sparrows is reported to have carried to the nest five hundred insects in an hour. These statements may be exaggerated, but if they approx- imate the facts, what immense numbers of insects must be 1 Notes on Recent Progress of Agricultural Science, by David A. Wells. Re- port (on Agriculture) of the United States Commissioner of Patents, 1861, p. 525. * A Favorable View of the English Sparrow, a Review of ‘‘Un Passereau a Protéger,’’ Insect Life, Riley and Howard, Vol. IV, 1891, p. 153, published by the United States Department of Agriculture. ’ Birds and Bird Laws, by J. R. Dodge. Annual Report of the United States Commnissioner of Agriculture, 1864, pp. 436, 437. VALUE OF BIRDS TO MAN. ad consumed by the young of native Massachusetts birds that are fed almost entirely upon insect food. Weed and Dearborn watched three young Cedar Birds in the nest for the fifteen days they remained there, and found that they each devoured not less than ten ounces of food in that time, or more than ten times their weight on the day they left the nest. The Amount of Food eaten by Adult Birds. There is no way of determining how much food is required daily by the adult bird, except it be kept in confinement ; in that case, the food taken can be weighed or measured. This has been done. Dr. Stanley mentions sixteen Canaries which ate one hundred grains of food per day, or an amount equal to about one-sixth of their weight, which is probably much less than wild birds of the same species would eat.! Seed- eating birds, like the Canary, however, require less food than the insectivorous species, as their food is more con- centrated. Mr. Robert Ridgway, the distinguished ornithol- ogist of the Smithsonian Institution, makes the statement in the American Naturalist for August, 1869, that a Western Kingbird (7'yrannus verticalis), which he kept in a cage, devoured one hundred and twenty locusts in a single day. Compared with the wild bird, the specimen that is caged or confined is a poor, weak thing at best, short of breath, low in vitality, and lacking the vigorous assimilative powers of the free bird. Keepers of cage birds, who know well the capacity of their pets, find it difficult to believe that wild birds can possibly consume the amount of food that actually has been found in their stomachs by economic ornithologists. When the reader is told that thirty grasshoppers were found in the stomach of a single Catbird, he conjures up a mental photograph of the full-grown grasshopper (the imago) that he sees in the field in late summer, and fails to remember, perhaps, that grasshoppers come from eggs, and in their growth to maturity may be found of all sizes, between that of the newly hatched insect and the full-winged hopper. 1 History of Birds, p. 225. 58 USHFUL BIRDS. While the Catbird’s stomach might not be large enough to contain thirty full-grown locusts, it would easily contain more than thirty small ones. The statement that thirty grasshop- pers were found in the Catbird’s stomach might also need modification in another way. The least fragment of an in- sect found in a bird’s stomach is usually considered good proof that the bird has eaten that insect. There might be found in the stomach of a bird a mass of unrecognizable material, from which the expert would be able to sort out and recognize enough of the harder parts of different grass- hoppers to prove that thirty of these insects, of consider- able size, had been eaten within a certain time, even though a greater part of those first swallowed had already disap- peared from the stomach. Prof. F. E. L. Beal writes me as follows regarding the methods used at the United States Department of Agri- culture in counting the insects found in the stomachs of birds : — In the case of grasshoppers and caterpillars it is the jaws (mandi- bles) that are counted. Birds when not sleeping appear to eat all the time when not occupied in other duties, such as nest-making or feeding their young. The process of digestion is continuous. ‘The more easily digested parts pass out of the stomach very quickly, but the hard parts remain somewhat longer. In this way when a bird is feeding upon grasshoppers the jaws of those first eaten remain after the rest of the body has passed on. When the stomach is opened the jaws are counted, and for every two we estimate at least one grasshopper killed. In cases where only a few insects were involved I have taken the pains to pair the jaws, and in this way have often found that the number that had been eaten was more than half the number of jaws. In this work each head that appears to be whole is carefully examined, to see that it has not lost one or more of its jaws; were it not for this precaution, the insect might be counted twice. Caterpillars, like grasshoppers, are easily broken up, and so the heads are counted when whole; other- wise the jaws are counted. The variation in size of different species of insects should also be considered. While the caterpillars of some species of moths reach three or four inches in length, others never grow to be half an inch long. These and other similar considerations, well known to VALUE OF BIRDS TO MAN. 59 the economic ornithologist, lead him to accept as facts the extreme statements made by competent investigators. It will be seen from the foregoing explanations that, while a large number of injurious insects found in a bird’s stom- ach may indicate its usefulness, it may not always mean that it has eaten a great bulk or quantity of such food. The question which most interests the farmer, however, is, not so much what birds require to sustain life, as how much they will eat if they can get their fill. If in times of plenty birds will eat more than they really need, then they become more useful or injurious, as the case may be, than they would be if they ate only enough to live. The amount of food that has been found in birds’ gizzards indicates that they will eat until surfeited. Professor Beal, who has examined the contents of over twenty thousand stomachs, says, regarding this habit : — The majority of people have no idea of how much these insects can be compressed in the stomach of a bird. It is often the case that when a stomach has been opened, and the contents placed in a pile, the heap is two or three times as large as the original stomach with the food all in it. Moreover, in the cases where remarkable numbers of insects have been found, the crops or gullets usually have been full, as well as the stomach itself. It is a fact, perhaps not generally known, that with birds that have no special enlargement of the gullet in the nature of a crop, the whole gullet is used for the purpose ; and when favorite food is abundant, the bird will fill itself to the throat. I have seen a Snow- bird so full of seeds that they were plainly in sight when the beak was opened, and from the bill to the stomach was a solid mass of seed. The stomachs of birds are often packed so hard and tight with food that it is a wonder how the process of digestion can go on; but it does, nevertheless. In giving the maximum amounts of food found in birds’ stomachs, I shall be obliged to refer to the publications of the Bureau of Biological Survey of the United States De- partment of Agriculture; and it is but just to say here that the world owes much to Dr. Merriam, chief of the Bureau, for his indefatigable labors in behalf of science and acriculture. In connection with the work of the survey, the contents of more than thirty-five thousand bird stomachs have been 60 USEFUL BIRDS. examined, and much has been done in observing the feed- ing habits of birds in the field. The work in economic orni- thology performed by Merriam, Fisher, Barrows, Beal, and Judd is of great value. Its results rank above those of all other similar investigations, and must be considered as authoritative. Professor Beal found in the stomach of a Yellow-billed Cuckoo two hundred and seventeen fall webworms, and in another two hundred and fifty American tent caterpillars. Two Flickers were found to have eaten respectively three thousand and five thousand ants. Sixty grasshoppers were found in the stomach of a Nighthawk. Professor Harvey found five hundred mosquitoes in a Nighthawk’s stomach. In this case the insects must have been fully grown, as the larve of the mosquito are found mainly in water, and the Nighthawk takes its food on the wing. The stomach of this useful bird is much larger in pro- portion to its size than that of most other birds; but sev- enty-five hundred seeds of the yellow wood sorrel had been eaten by a Mourning Dove, sixty-four hundred by another, and ninety-two hundred seeds, chiefly of weeds, were found in another. Here we have twenty-three thousand one hun- dred seeds, mostly those of weeds, eaten at a meal by three birds. Probably where these large numbers are given, the result is approximate, and is arrived at by counting a part of the contents for a measure, and from this estimating the rest in bulk. Dr. Judd says that the stomachs of four Bank Swallows contained, all together, just two hundred ants, and that a Nighthawk has been known to eat one thousand at a single meal. He speaks of seventeen hundred seeds of weeds hay- ing been taken at one feeding by a Bob-white ; three thou- sand leguminous seeds were found in the stomach of another, and no less than five thousand seeds of pigeon grass were taken from a third. Dr. Warren has taken twenty-eight cutworms from the stomach of a Red-winged Blackbird. Stomachs of Snowflakes have each contained from five hundred to fifteen hundred seeds of amaranth. Professor Forbes found in the stomachs of seven Cedar Birds a number "ALUE OF BIRDS TO MAN. 61 of cankerworms varying from seventy to one hundred and one each, the number found in most cases averaging nearly one hundred for each bird. A Ruffed Grouse, killed in winter, had in its crop twelve leaves of sheep laurel and four hundred and thirty-five buds and bits of branches, all taken for its morning meal. The crop of another contained over five hundred buds and twigs. As these birds eat such food both at morning and at night, it would seem that they must require daily, for these two meals alone, between eight hundred and one thousand buds and twigs.! The following notes, received from Professor Beal since the above was written, are of great interest : — From the stomach of a Franklin’s Gull (Larus franklinit) there were taken seventy entire grasshoppers and the jaws of fifty-six more; from another, ninety grasshoppers and one hundred and two additional jaws ; from another, forty-eight grasshoppers and seventy more jaws ; and still another contained sixty-seven grasshoppers. Another stomach of this species contained sixty-eight crickets. These grasshoppers and crickets were each more than one inch in length. We examined the stomach of a Franklin’s Gull which contained three hundred and twenty-seven entire nymphs of dragon flies, each three-fourths of an inch in length. In the stomach of a Cliff Swallow were found one hundred entire beetles (Aphodius inquinatus), with remains of others. These insects are a little more than three-eighths of an inch in length. We are now examining birds’ stomachs from Texas, and from the stomach of a Yel- low-billed Cuckoo were taken the remains of eighty-two caterpillars that originally were from one to one and a half inches in length. From another stomach were taken eighty-six, and from forty to sixty from several others. All evidence acquired by observation as to the amount of food eaten by wild birds at liberty must perforce be frag- mentary, for such observation is necessarily limited to brief periods. The difficulties attending such work make its re- sults somewhat uncertain and unsatisfactory ; nevertheless, some information as to the quantity of food eaten by wild birds may be obtained in this way. Vultures are said to so gorge themselves that they are unable to fly. I have known 1 Birds in their Relation to Man, by Clarence M. Weed and Ned Dearborn, 1903, p. 62. 62 USEFUL BIRDS. a Goshawk in winter to kill a domestic Cock of more than its own weight, and devour the greater part at two meals. I have learned, by following certain Warblers and Titmice through the woods, that their search for and consumption of insects are almost continuous during most of the forenoon. As the noon hour approaches they become less active, and on warm days devote some time to resting and bathing. In the afternoon their activity increases, until toward night their quest for food is almost as strenuous as in the early morning. They are, therefore, actually engaged for the larger part of the day in capturing and eating insects. In feeding wild birds in winter I have noticed that Chickadees come to the food supplied for them about three times an hour all day long, and that in the intervals they are mainly occu- pied in finding their natural food. On May 28, 1898, Mr. Mosher watched a pair of Maryland Yellow-throats eating plant lice from the birches in the Middlesex Fells Reserva- tion, where these insects swarmed. He was equipped with a good glass, and concealed close to the spot where the birds were feeding, and so was able to count in turn the number of times each bird picked up an insect. One of these War- blers apparently swallowed eighty-nine of these tiny insects in one minute. The pair continued eating at this rate for forty minutes. Mr. Mosher states that they must have eaten considerably over seven thousand plant lice in that time. It would seem impossible for the birds to crowd that number of insects into their stomachs; but we must remember that the insects were infinitesimal in size, soft-bodied, easily com- pressed in the stomach, and quickly digested, so that by the time a part were eaten those first taken would be well dis- posed of, leaving room for more. Mr. Mosher is a very careful, painstaking, and trustworthy observer ; undoubtedly his statement is accurate; but, to eliminate any possibility of error, we will assume for purposes of calculation that they ate only thirty-five hundred in an hour. A pair of Yellow-throats (presumably the same) were seen to come daily and many times each day to the birch trees which were infested with these aphids. Probably they spent at least three hours each day feeding on these insects. If VALUE OF BIRDS T0 MAN. 63 the two birds ate only thirty-five hundred an hour for three hours a day, they would consume ten thousand five hundred aphids each day, or seventy-three thousand five hundred in a week. It requires no draft on the imagination to see how such appe- tites may become useful to the farmer if they are satiated on his insect enemies. Two Scarlet Tanagers were seen eating very small caterpillars of the gipsy moth for eighteen minutes, at the rate of thirty-five Fig. 26. — Yellow-throat catching birch aphids. a minute. These birds spent much time in that way. If we assume that they ate caterpillars at this rate for only an hour each day, they must have consumed daily twenty-one hundred caterpillars, or fourteen thousand seven hundred in a week. Such a number of caterpillars would be sufli- cient to defoliate two average apple trees, and so prevent fruitage. The removal of these caterpillars might enable the trees to bear a full crop. It is easily possible, therefore, for a single pair of these birds in a week’s time to save the fruit of two average apple trees, —a crop worth from two to five dollars or more, according to the productiveness of the trees and the price paid for apples. BIRDS SAVE TREES AND CROPS FROM DESTRUCTION. Since birds evidently operate to check insect outbreaks, it follows that in their capacity of insect destroyers they must in many instances have saved trees and crops from destruc- tion by insect pests. If, however, we turn to the literature of agriculture, entomology, and ornithology, we shall not find it replete with such instances. Still, there are enough on record to show that conspicuous services of birds have been noted occasionally ; and I am convinced by my own experi- ence that such checks to insect increase occur commonly, but escape both observation and record. Some brief but striking accounts of this class of occur- 64 USEFUL BIRDS. rences may be gleaned from European records. Samuels writes that in Pomerania in 1847 an immense forest that was in danger of being utterly ruined by caterpillars was very unexpectedly saved by Cuckoos, which, though on the point of migrating, established themselves there for some weeks, and so thoroughly cleared the trees that the next year ‘‘ neither depredators nor depredations were to be seen.”! He also speaks of a European outbreak of the gipsy moth (Porthetria dispar) in 1848, saying that the hand of man was powerless to work off the infliction, but that on the approach of winter Titmice and Wrens paid daily visits to the infested trees, and before spring had arrived the eggs of dispar were en- tirely destroyed. This account agrees with the following translation from Altum :— In the year 1848 endless numbers of the larvee of Bombyx dispar had eaten every leaf from the trees of Count Wodzicki, so that they were perfectly bare. In the fall all the branches and limbs were covered with the egg clusters. After he had recognized the impracticability of it, he gave up all endeavor to remove them by hand, and prepared to see his beautiful trees die. Towards winter numerous flocks of Titmice and Wrens came daily to the trees. The egg clusters disappeared. In the spring twenty pairs of Titmice nested in the garden, and the larva plague was noticeably reduced. In the year 1850 the small feathered garden police had cleaned his trees, so that he saw them during the entire summer in their most beautiful verdure.? According to Reaumur, these larve were so extremely numerous on the limes of the Alle verte at Brussels in 1826 that many of the great trees of that noble avenue were nearly defoliated. The moths swarmed like bees in the summer. They were also very numerous in the park, and if one-half the eggs had hatched in the following spring, probably scarce a leaf would have remained in these favorite places of public resort. Two months later, however, he could scarcely dis- cover a single egg cluster. This happy result was attributed to the Titmice and Creepers, which were seen busily running up and down the tree trunks.? 1 Agricultural Value of Birds, by E. A. Samuels. Annual Report of the Massachusetts State Board of Agriculture, 1865-66, pp. 116, 117. * Translated from Forstzoologie, II, 1880, p. 324. 8 Reau. i387. Cited by Kirby and Spence in their Introduction to Entomology, 1857, pp. 117, 118. VALUE OF BIRDS TO MAN. 65 The value of birds has already been recognized at the antipodes. Australian farmers have suffered greatly from inroads of locusts upon their crops and pastures. The Australian correspondence of the Mark Lane Express of March 7, 1892, had a paragraph relating to the value of the Ibis to farmers during the locust incursions of that year and the year previous. In the Glen Thompson district several large flocks, one said to number fully five hundred birds, were seen eating the young locusts in a wholesale manner. Other insectivorous birds were flourishing upon the same diet. Near Ballarat, Victoria, a swarm of locusts was noted in a paddock; and just as it was feared that all the sheep would have to be sold for want of grass, flocks of Starlings, Spoonbills, and Cranes made their appearance, and in a few days made so complete a destruction of the locusts that only about forty acres of grass were lost.? American farmers have had many similar experiences. When the Mormons first settled in Utah their crops were almost utterly destroyed by myriads of crickets that came Fig. 27.—The western cricket that destroyed the settlers’ crops at Salt Lake. Natural size; after Glover. down from the mountains. Hon. Geo. Q. Cannon, as tem- porary chairman of the third irrigation congress, told how it happened. The first year’s crop having been destroyed, the Mormons had sowed seed the second year. The crop prom- ised well, but when again the crickets appeared, the people were in danger of starvation. In describing the conditions in 1848 Mr. Cannon says : — 1 Insect Life, Riley and Howard, 1891-92, Vol. IV, p. 409. (oy) (or) USEFUL BIRDS. Black crickets came down by millions and destroyed our grain crops; promising fields of wheat in the morning were by evening as smooth as a man’s hand,—devoured by the crickets. . . . At this juncture sea Gulls came by hundreds and thousands, and before the crops were entirely destroyed these Gulls devoured the insects, so that our fields were entirely freed from them. . . . The settlers at Salt Lake regarded the advent of the birds as a heayen-sent miracle. I have been along the ditches in the morning and have seen lumps of these crickets vomited up by the Gulls, so that they could again begin killing. b) These ‘‘lumps of crickets” were probably pellets com- posed of indigestible portions of the insects, regurgitated by the birds. These crickets (Anabrus simplex) trav- Fig. 28.— Gulls saving crops by killing crickets. elled in enormous hordes, stopping at no obstacle, even crossing rivers. Several times afterward the crops of the Mormons were attacked by them, and were saved by the Gulls.t. Dr. A. K. Fisher is authority for the statement 1 This account of the deliverance of the Mormons by the Gulls is vouched for by many witnesses. See Irrigation Age, 1894, p. 188; also, Insect Life, Vol. VII, p. 275; Annual Report of the Massachusetts State Board of Agriculture, 1871, p. 76; Annual Report of the United States Commissioner of Agriculture, 1871, p. 79; and Second Annual Report of the United States Entomological Commission, 1878-79, p. 166. ~l VALUE OF BIRDS TO MAN. 6 that the bird referred to is undoubtedly Franklin’s Gull (Larus franklinti), which occurs in enormous flocks about the small fresh-water lakes of the northwest, and feeds in great companies on Orthoptera of all sorts. The Gulls were practically canonized by the grateful Mormons, and protected by both law and public sentiment, as a recognition of their worth. Similar services were performed by birds during the great locust ravages which followed the settlement of the Missis- sippi valley. When large swarms of locusts appeared, nearly all birds, from the tiny Kinglet to the great Whooping Crane, fed on them. Fish-eating birds, like the Great Blue Heron, flesh-eating birds, like the Hawks and Owls, shore birds, Ducks, Geese, Gulls, —all joined with the smaller land birds in the general feast. Prof. Samuel Aughey learned this by dissecting birds and observing their feeding habits in Nebraska. In a paper published by him in 1877, but not often quoted, he gives some of the practical results of the work done by birds in protecting crops from the mighty swarms of locusts which were devastating most of that region. He says :— In the spring of 1865 the locusts hatched out in countless numbers in northeastern Nebraska. Very few fields of corn and the cereal grains escaped some damage. Some fields were entirely destroyed, while others were hurt to the amount of from ten to seventy-five per cent. One field of corn northwest of Dakota City was almost literally covered with locusts, and there the indications were that not a stalk would escape. After, and about the time the corn was up, the Yellow-headed Blackbirds in large numbers made this field their feeding ground. Visiting the field frequently, I could see a gradual diminution of the number of the locusts. Other birds, especially the Plovers, helped the Yellow-heads ; and, although some of the corn had to be replanted once, yet it was the birds that made the crop that was raised possible at all. During the same season I visited Pigeon Creek valley, in this county, and I found among the eaten-up wheat fields one where the damage done was not over five per cent. The Irishman who pointed it out to me ascribed it to the work of the birds, chief among which were the Black- bird and Plover, with a few Quail and Prairie Chickens. Professor Aughey speaks of a locality where, on several old fields, locusts hatched to the number of about three hun- 68 USEFUL BIRDS. dred to the square foot. Birds soon found them, and the ground was frequented by Blackbirds, Plover, Curlews, Prairie Chickens and small land birds. Long before the middle of June most of the locusts had disappeared. In 1886 locusts, he says, invaded Cedar and Dixon counties in swarms that darkened the sun. Nevertheless, at one point under observation the great number of birds that attacked these insects very materially lessened their numbers. In 1869 more than ninety per cent. of the locusts in one neighborhood were destroyed, apparently by birds, in one week. Other experiences are given, and several interesting letters from farmers are published, one of which follows : — Dear Sir:—In answer to your question about the birds and the locusts, I must say this: every farmer that shoots birds must be a fool. I had wheat this last spring on new breaking. The grasshoppers came out apparently as thick as the wheat itself, and indeed much thicker. I gave up that field for lost. Just then great numbers of Plover came, and flocks of Blackbirds and some Quail, and commenced feeding on this field. They cleaned out the locusts so well that I had at least three-fourths of a crop, and I know that without the birds I would not have had any. I know other farmers whose wheat was saved in the same way. S. E. GOODMORE. FREMONT, NEB. Another farmer wrote that the locusts hatched in immense numbers in his corn fields, but flocks of Blackbirds came and destroyed the insects, so that he raised a good crop. In an- other case, related by State Senator Crawford, a wheat field was swept clean by the locusts when the wheat was about two inches high; but flocks of Blackbirds came and de- voured the locusts, and the wheat sprang up again and made a good crop. The members of the United States Entomo- logical Commission were much impressed with the value of birds as locust destroyers. They said that the ocular dem- onstration of the usefulness of birds as insect destroyers was “so full and complete that it was impossible to entertain any doubt on this point.” In one instance a farmer took one of the members of the commission out into the field, to show him how numerously the young locusts were hatching. VALUE OF BIRDS TO MAN. 69 When they arrived, the insects had disappeared from the place where they had been so abundant in the morning. The statement by the family that a flock of Blackbirds had been there during the farmer’s absence solved the mystery. In another instance a garden was attacked by an innumer- able host of little locusts. The owner battled bravely with them for awhile, but at last, giving up in despair, sat down to watch the destruction of his vegetables and flowers, when suddenly a flock of Blackbirds alighted on the young cot- tonwoods he had planted in his yard. Having chirped a song, as if to cheer him, they flew into the garden; when they left, an hour or so later, the dreaded “hoppers” were gone, and his garden was saved.1 A severe outbreak of the forest tent caterpillar (Malaco- soma disstria) occurred in New York and some of the New England States in 1897-98. Thousands of acres of wood- land were devastated, great damage was done to the sugar- maple orchards of New York and Vermont, and the injury extended into Massachusetts. Birds and other natural ene- mies attacked the caterpillars vigorously in many localities, and by the year 1900 the plague had been reduced so that the injury was no longer seen. Miss Mary B. Sherman of Ogdensburg, N. Y., wrote on May 18 of that year that the town was then full of birds which were feeding on the cater- pillars. There had been numerous Warblers in the maples, and the Orioles, Sparrows, Robins, Cedar Birds, several species of Warblers, and probably the House Wren, were killing caterpillars. Birds were reported in large numbers in the county. On May 26 she wrote again, stating that there were practically no caterpillars left, cold weather hav- ing killed many, and the birds apparently having destroyed the remainder.? | The good accomplished by birds in quelling great insect in- vasions should be patent to all, but very few people realize what the birds are doing. Many Nebraskans failed to notice 1 First Report of the United States Entomological Commission. Riley, Pack- ard, and Thomas. 1877, pp. 335, 336, 338-344. * Report on the Injurious and Other Insects of the State of New York, by E. P. Felt, 1900, p. 1019. 70 USHFUL BIRDS. that birds were feeding on the locusts until Professor Aughey called their attention to this fact by articles published in the press. Birds are doing the same kind of work in Massachusetts to-day, in repressing smaller outbreaks of common insects. Had we more observing people to record such services, their amount and variety probably would astound us. Professor Beal-saw a family of Rose-breasted Grosbeaks clear the potato beetles from a potato patch of about one-fourth of an acre. Mr. E. W. Wood of West Newton, a well-known horticultur- ist, informed me that during one season, when the spring can- kerworms (Paleacrita vernata) became quite numerous in his orchard, a pair of Baltimore Orioles appeared, built a nest near by, and fed daily upon the cankerworms. ‘This they continued to do assiduously: by the time the young birds were hatched, the numbers of the worms were considerably reduced. The birds then redoubled their diligence, carry- ing ten or eleven worms to the nest at once. Soon the cankerworms had disappeared, and there has been no trouble from them for many years. Instances were recorded during the first State campaign against the gipsy moth, from 1890 to 1895, where small isolated moth colonies appeared to have been suppressed and even annihilated by birds. o 7 & PLATE X.—The Same Pellets, dissected. The fur is shown in a pile on the right, and, on the left, portions of skulls and other bones of mice, shrews, and moles, eaten by the Owls. VALUE OF BIRDS TO MAN. 81 Navigators approaching their home port during seasons of bird migration welcome the appearance of familiar land birds which are seen while land is still far out of sight. Mr. Frank M. Chapman has shown, in an interesting paper on the ornithology of the first voyage of Columbus, that we possibly owe the discovery of America by Columbus to the fact that he happened to approach the land at the right time and place to cross the line of the fall flight of land birds that were going from the Bermudas to the Bahamas and Antilles. The discouraged seamen were on the verge of mutiny, and might have compelled Columbus to return to Spain, had not small land birds come aboard unwearied and singing. The course of the vessel was changed to correspond with the direction of their flight, and the voyage was thus shortened two hundred miles and pursued to its end.! The well-known services of Vultures, which destroy gar- bage and carrion in the tropics, have no real counterpart in the north. Crows are of some use, but Gulls and other water-birds are most valuable to man in this respect, in that they devour the garbage and refuse that are cast into harbors and arms of the sea, thus undoubtedly preventing the pollu- tion of many bays and beaches by floating filth and refuse from great cities. Sea birds must be reckoned among the chief agencies which have rendered many rocky or sandy islands fit for human habitation. The service performed by birds in fertilizing, soil-building, and seed-sowing on many barren islands has entitled our feathered friends to the gratitude of many a shipwrecked sailor, who must else have perished miserably on barren, storm-beaten shores. THE COMMERCIAL VALUE OF BIRDS. In all the foregoing we have considered mainly “the good offices that birds voluntarily take upon themselves in our service.” We have yet to take into account the tax which we impose upon them for our own revenue of profit or pleasure, —a tax which we collect unsparingly, and with the strong hand of force. 1 Papers presented at the World’s Congress on Ornithology, 1896, pp. 181-185. 82 USEFUL BIRDS. This tribute of flesh, blood, and feather is levied largely upon those orders of birds which in domestication become poultry, and in the wild state are known as game birds ; but many small land birds have become victims of man’s greed, and the sea birds have been forced to contribute to his food supply. The eggs of certain Gulls, Terns, Herons, Murres, and Ducks that breed in large colonies find a ready sale in the market, or furnish a part of the food supply of the people who live near these breeding places. Wholesale egging was carried on along the coast of Massachusetts and other New England States, until the Gulls and Terns were in most cases driven away from their breeding places. The inhabitants along the shores of the southern States, as well as those on the Pacific coast, gathered the eggs of the sea birds by boatloads for many years. For nearly fifty years Murres’ eggs were collected on the Farallone Islands and shipped to the San Francisco market. It is said that in 1854 more than five hundred thousand eggs were sold there in less than two months. This must have been an important item in the food supply of the young and growing: city. Mr. H. W. Elliot mentions that on the occasion of his first visit to Walrus Island in the Behring Sea six men loaded a badarrah, carrying four tons, to the water’s edge with Murres’ eggs. On Laysan, one of the Hawaiian Islands, there is a great breeding place of an Albatross (Diomedea immutabilis). Such immense quantities of their eggs have been gathered that cars have been loaded with them.’ All this egg collect- ing, however, should be stopped, for it tends to exterminate the birds, and all the eggs needed for human consumption can be produced by poultry. Sea birds which breed on isolated islands or barren shores feed mainly on animal food, which they get from the sea. Guano consists of the excreta and ejecta of sea birds, mixed with the remains of birds, fish, and otheranimals. It is found on the gathering places of these birds. In the rainless lati- 1 A Review of Economie Ornithology in the United States, by Dr. T. 8. Palmer. Yearbook, United States Department of Agriculture, 1899, pp. 271, 272. See this paper also for an account of the guano trade. Cnqnjouoyxy ‘suena ‘ff Aq Ydersojoyq) ‘8859 YIM popeoy useq oAvTy STD aTdT[M ‘Spdiq Bos JO dovI[d SuIpsaiq V ‘] ‘HW ‘puels] ueshey] uo sassoneqiy —"IX ALVI1d pis VALUE OF BIRDS TO MAN. 83 tudes of the Pacific, near the equator, guano once accumulated in tremendous deposits. It dried quickly, and where there were no rains to wash it away it was preserved with most of its fertilizing constituents intact. The guano found on islands outside the dry latitudes is of less value, as its nitrogen is quickly washed out or dissipated. The importance of guano as a fertilizer was recognized in Peru by the Indians more than three centuries ago. Under the Incas the birds on the Chincha Islands were carefully protected, and the deposits of guano jealously guarded. It is said that the penalty of death was inflicted on any one who killed birds near these rocks in the breeding season. Humboldt, returning from his travels in tropical America in 1804, carried some samples of guano to Europe, and first called attention to the value of the deposits of this substance on the Chincha Islands; but it was nearly forty years later that guano became a stimulus to intensive agriculture, and furnished a source of revenue to civilized nations. The vast deposits on these three islands covered the rocks in some places to a depth of ninety or one hundred feet. The amount still undisturbed in 1853 was estimated by the official sur- veyors of the Peruvian government as twelve million, three hundred and seventy-six thousand, one hundred tons. Its use was first attempted in England in 1840; at that time the beds seemed inexhaustible. The guano trade soon became so important as to be a source of diplomatic correspondence between nations. It is said to have brought Peru and Chile to the verge of war. By 1850 the price of Peruvian guano had advanced in the United States to fifty dollars a ton, and American enterprise began to seek guano elsewhere. Americans have since filed with the government claims to about seventy-five guano islands in the South Pacific or in the Caribbean Sea. The vast deposits on the Chinchas are nearly exhausted, and fertilizers are now manufactured to supply the demand. Undoubtedly, however, the discovery and use of guano marked the beginning of the present enor- mous trade in commercial fertilizers. The manurial value of the phosphoric acid and nitrogen contained in fish has now become quite generally recognized, and fleets of small 84 USEFUL BIRDS. vessels are employed in seining menhaden and other fish for use in the manufacture of fertilizers. Notwithstanding the value of birds to man as destroyers of insects and vermin, they are killed and utilized by him in various ways. The destruction of game birds has been so great in Mas- sachusetts, and the demand so much in excess of the supply, that birds are now imported from other States and from other countries. It is becoming a serious question, with those most interested, how we shall so regulate the shooting of game birds that the supply may be kept up. The game birds of America have a great intrinsic value as game. The flesh of many is considered to rank high among delicacies. The pursuit of these birds has formed a large part of the occupation of many members of the rural population during the shooting seasons, and a vast business has grown out of the traffic in birds’ flesh. Anenormous game business has been carried on by provision dealers in this country, and the demand for game is continually increasing. Few accurate statistics of the amount of game sold are obtainable; but Mr. D. G. Elliot, writing in 1864, states that one dealer in New York was known to receive twenty tons of Prairie Chickens in one consignment, and that some of the larger poultry dealers were estimated to have sold from one hun- dred and fifty thousand to two hundred thousand game birds in the course of six months.? The killing of birds for sport has a certain economic affin- ity with market hunting, in that it supports a large trade in guns, ammunition, boats, dogs, and all the tools, appliances, and impedimenta of the sportsman. It furnishes employment to guides, dog breakers, and boatmen, and helps support many country hostelries and seaside hotels. The manufac- ture of firearms and ammunition for sportsmen has become a great industry. Altogether, many thousands of men are dependent for a part of their livelihood on the killing of game for sport or food, while a still larger army finds its chief outdoor recreation in the pursuit of game birds. The 1 Report of the United States Commissioner of Agriculture, 1864, pp. 383, 384. VALUE OF BIRDS TO MAN. 85 value of game birds to the farmer, epicure, marketman, and sportsman should insure them the most stringent protection. Nevertheless, some of the migratory species, through lack of effectual protection, have already been so reduced in num- bers that they are no longer of any commercial importance. The domestication of birds probably was coincident with that of animals, and grew from the desire of the primitive agriculturist to have always at hand a fresh supply of deli- cate and nutritious animal food. No other animals can ever be so adapted to the environments of civilization as to fur- nish us with a similarly valuable supply of both meat and eggs. The poultry business of this country has grown to such importance that the total value of the annual poultry prod- uct has reached nearly three hundred million dollars. Mas- sachusetts imported probably about eighteen million dollars’ worth of poultry products in 1903. When we consider that in all the centuries the work of domestication has included but a few species, it is evident that the possibilities in this direction have not been exhausted. Within the last half-century fashion has been responsible for the killing of millions of birds for the millinery trade. This trade is now limited by laws making it illegal to kill or use most native birds, except game birds, for this purpose. Instances of the destruction of birds for millinery purposes will be given in another chapter. The American demand for feathers for ornamental uses is now largely met by articles manufactured from the feathers of domestic fowls and game birds. The demand for Ostrich plumes has re- sulted in the establishment of a new industry in America, — the raising of Ostriches. There has been a growing demand for American song birds for cage purposes ; but this traffic is now prohibited by law. THE ASTHETIC, SENTIMENTAL, AND EDUCATIONAL VALUE OF BIRDS. Thus far I have written solely from the standpoint of “enlightened selfishness,” entertaining no consideration of the esthetic, humane, sentimental, or educational. I have 86 USEFUL BIRDS. attempted to look at birds solely from the utilitarian point of view, and to demonstrate the fact that their contributions to man’s welfare have at least a material value. Now let us turn for a moment from the contemplation of such utility of birds as money can measure to “some of the higher and nobler uses which birds subserve to man.” In so doing we step at once from the beaten path of economic ornithology into a boundless realm, sacred to art, letters, sentiment, and poetry on the one hand, while on the other lie the fair fields in which we may take up, if we will, the fascinating study of birds, which may end merely in delightful experi- ences, or lead to the class room, the museum, the laboratory, or the closet of the systematist. Wherever it may lead us, this phase of our subject is of the highest importance, and demands the most serious consideration. Although presented last, its benefactions should perhaps come first among the items which go to make up the sum of our indebtedness to birds. The beauty of birds, the music of their songs, the weird wildness of their calls, the majesty of their soaring flight, the mystery of their migrations, have ever been subjects of absorbing interest to poets, artists, and nature lovers every- where. Prominent among the undying memories of men are mental pictures of the birds of childhood, their coming in the spring, their nesting, and their chosen haunts. Many an exiled emigrant longs in vain to hear again the outpour- ing melody of the Skylark, as it soars above the fields of England. » Many a New England boy, shut in by western mountains, yearns for the bubbling, joyous song of the Bob- olink in the June meadows... The characters and traits of birds, their loves and battles, their skill in home building, their devotion to their young, their habits and ways, —all are of human interest. Birds have become symbolic of cer- tain human characteristics ; and so the common species have come to be so interwoven with our art and literature that their names are household words. What biblical scholar is not familiar with the birds of the Bible? Shakespeare makes over six hundred references to birds or bird life. Much of the best literature would lose half its charm were it shorn of poetic allusions to birds. VALUE OF BIRDS TO MAN. 87 Birds often have inspired the poets. Bryant’s lines “ To a Water-fowl,” and Shelley’s “Skylark,” each exhibit a phase of such inspiration. These are but instances of the stimu- lating power exerted on the mind of man by the bird and its associations. Some of the grandest poems ever written have been dependent on their authors’ observation of birds for some touch of nature which has helped to render them immortal. Thus Gray, in his famed “Elegy written in a Country Churchyard” : — The breezy call of incense-breathing morn, The Swallow twittering from the straw-built shed, The Cock’s shrill clarion, or the echoing horn, No more shall rouse them from their lowly bed. Who, reared in a country home, can fail, as he reads these lines, to recall the twittering of the Swallows under the spreading rafters in the cool of early morning? The mental contemplation of that peaceful pastoral scene, the train of tender recollections of the time of youth and inno- cence, all tending toward better impulses and higher aspira- tions, are largely due to the mention of the familiar bird in its association with the home of childhood. Is not literature the richer for the following lines of Longfellow in his “ Birds of Passage”? Above, in the light Of the star-lit night, Swift birds of passage wing their flight Through the dewy atmosphere. I hear the beat Of their pinions fleet, As from the land of snow and sleet They seek a southern lea. How much of life and color the presence of birds adds to the landscape! The artist appreciates this. What marine view is complete without its Gulls in flight? How much a flock of wild-fowl adds to a lake or river scene ! Birds are a special boon to child life, and a never-ending source of entertainment to many children who live upon isolated farms, where the observation of birds’ habits adds greatly to the rational enjoyment of existence. It is not a far cry from the poet to the philosopher, and 88 USEFUL BIRDS. he also sees a value in birds for the opportunity they afford for the culture of the intellect. Every page of the book of nature is educational. But, as Dr. Coues says, there is no fairer or more fascinating page than that devoted to the life history of a bird. The systematic study of birds develops both the observational faculties and the analytical qualities of the mind. The study of the living bird afield is rejuve- nating to both mind and body. The outdoor use of eye, ear, and limb, necessitated by field work, tends to fit both the body and mind of the student for the practical work of life, for it develops both members and faculties. It brings one into contact with nature, — out into the sunlight, where balmy airs stir the whispering pines, or fresh breezes ripple the blue water. There is no purer joy in life than that which may come to all who, rising in the dusk of early morning, wel- come the approach of day with all its bird voices. The nature lover who listens to the song of the Wood Thrush at dawn —an anthem of calm, serene, spiritual joy, sounding through the dim woods —hears it with feelings akin to those of the devotee whose being is thrilled by the grand and sacred music of the sanctuary. And he who, in the still forest at even- ing, harkens to the exquisite notes of the Hermit, — that voice of nature, expressing in sweet cadences her pathos and her ineffable mystery, — experiences amid the falling shades of night emotions which must humble, chasten, and purify even the most upright and virtuous of men. The uplifting influence that birds may thus exert upon the lives of men constitutes to many their greatest value and charm. > OU ae eE ee rs SyNi\\\ 7 = . f OOS f : a Mi, a 7, AW ess te eae ; eH cw AY em SA = seal t { aie Ras i ees —_— ———< = . wi Fig. 139.— Vesper Sparrow, one-half natural size. erally distributed wherever there are open fields and upland pastures, but it is not a bird of the meadows, and is not as common in some parts of southeastern Massachusetts as else- 312 USHFUL BIRDS. where. It is not a dooryard bird, like the Chipping Spar- row or Song Sparrow, but prefers upland fields, hill pastures, and plowed lands, at some distance from the farm buildings. It is sometimes seen in vegetable gardens. It is not so closely confined to the ground as some other ground Sparrows, but perches on ridgepoles, wires, and trees. It frequently runs along the ground in pastures or potato fields, keeping just ahead of the observer as he walks. When the female is startled from her nest of young, she uses all her arts to entice the intruder away, fluttering along the ground with white-bordered tail spread conspicuously, and dragging her wings as if sorely wounded, —a tempting bait to lead the disturber away. The white outer feathers in the tail are not often clearly visible when the bird is standing, but usually may be seen when it flies. The song of this bird, while perhaps less cheery than that of the Song Sparrow, is sweeter, and seems to carry farther as it floats down from the hills after sunset. The bird some- times sings to greet the rising moon, and even flutters into the air, like the Skylark, with an exquisite burst of song. Mr. Burroughs has well named it the Vesper Sparrow. The ordinary notes are the usual Sparrow-like chips and calls. In summer most of the food of this bird consists of in- sects, of which beetles and grasshoppers form the bulk. Since it frequents pastures, it picks up many dung beetles ; weevils, click beetles, ground beetles, and leaf beetles seem otherwise to be preferred to other kinds. Grasshoppers form the principal food in midsummer; cutworms are also eaten, and the bird does good work as an insect eater in field and garden. It is also useful as a destroyer of weed seeds, eating less grass seed than some other Sparrows, but a great variety of the seeds of weeds which it finds in corn- fields and other fields, and in gardens. BLACKBIRDS, GRACKLES, ETC. This family has been mentioned on p. 224, and one of its members, the Baltimore Oriole, has been described among the birds of orchard and woodland (see pp. 224-228). The Rusty Grackle is a mere migrant through the State BIRDS OF FIELD AND GARDEN. old in spring and fall, and is not of much economic value here ; therefore, its description is omitted. The other species of the family will be considered here, for they all frequent meadows, grass fields, or cultivated lands. The Bronzed Grackle and the Purple Grackle are both found in the State, but, as they are alike in form, notes, and habits, they are both known as Crow Blackbirds, and will not be treated separately. Purple Grackle. Crow Blackbird. Quiscalus quiscula quiscula. Length. — Twelve to thirteen and one-half inches. Adult Male.— Variously purple, green, blue, violet, and bronzy; wings and tail mainly purplish; dark purplish or steel-blue on neck and breast : back greenish or bronzy; iris straw-yellow. Adult Female. — Similar, but browner. Nest. —A bulky structure, often built in tall coniferous trees. Eggs.— Greenish, spotted and streaked with black and brown. Season.— March to November. (This form intermingles with the succeeding one.) Bronzed Grackle. Western Crow Blackbird. Quiscalus quiscula eneus. Adult Male. — Similar to above, but body brassy or bronzy; head, neck, and upper breast mainly steel-blue; wings and tail violet and steel-blue. Adult Female.— Similar to that of the Purple Grackle. Both the above forms look black at a distance, and then are not distinguishable from one an- other; both forms have the tail long. Nest, Eggs, and Season. — Like those of the Purple Grackle; winters rarely. These birds, the latter of which is common here, find their normal habitat about meadows or marshes; but they have taken kindly to civilization, and, where they are not much persecuted, are common about lawns, fields, and gar- dens. They may often be seen walking about on Boston Common or in the Public Garden. They build their nests in tall shade trees near suburban and city residences or about cemeteries, and they frequent well-kept lawns. They are so large and powerful that not even the Sparrow can drive them out; and if the Sparrows attack their eggs or young, the Blackbirds are not slow to retaliate with effect. These birds are conspicuous, and when close at hand are unmistakable. The tail is often held with its outer feathers upturned like the sides of a boat, particularly when they fly, 314 USHFUL BIRDS. which they do usually at some height, in rather a labored manner, keeping about the same level. The ordinary note is a sort of hoarse, loud chuch, and the song sounds much like the rather musical creaking of arusty hinge. They have also a metallic, jangling note, and when a number perch ona favorite tree and sing in chorus, the clanging and creaking they produce are indescribable. When not disturbed, they breed in companies, often in groves of white pine ; but where they are much shot at, they separate, and each pair finds a secluded place for its nest. As Fig. 140.— Crow Blackbird, male, soon as the young are reared, one-half natural size. 2 : the birds gather in flocks of hundreds or even thousands, and forage together. In mi- eration they sometimes travel in immense armies. A great flight of these birds passed over Concord on Oct. 28, 1904. From my post of observation, on a hilltop, an army of birds could be seen extending across the sky from one horizon to the other. As one of my companions remarked, it was a >» great “rainbow of birds ; ” appeared to be about three rods wide and about one hundred as they passed overhead, the line feet above the hilltop. This column of birds appeared as perfect in form as a platoon. The individual birds were not flying in the direction in which the column extended, but diagonally across it ; and when one considers the difficulty of keeping a platoon of men in line when marching shoulder to shoulder, the precision with which this host of birds kept their line across the sky seems marvellous. As the line passed overhead, it extended nearly east and west. The birds seemed to be flying in a course considerably west of south, and thus the whole column was gradually drifting southwest. As the left of the line passed over the Concord meadows, its end was seen in the distance, but the other end of this mighty army extended beyond the western horizon. The flight was watched until it was nearly out of sight, and then followed with a glass until it disappeared in the distance. BIRDS OF FIELD AND GARDEN. uD It never faltered, broke, or wavered, but kept straight on into the gathering gloom of night. The whole array presented no such appearance as the unformed flocks ordinarily seen earlier in the season, but was a finer formation than I have ever seen elsewhere, among either land birds or water-fowl. It seemed to be a migration of all the Crow Blackbirds in the region, and there appeared to be a few Rusty Blackbirds with them. After that date I saw but one Crow Blackbird. It was impossible to estimate the number of birds in this flight. My companions believed there were “millions.” The character of the food of the Crow Blackbirds is very wellknown. The large flocks in which they gather in autumn are very destructive to ripening corn, and some individuals destroy birds’ eggs or young birds ; otherwise, in Massachu- setts the birds are largely beneficial. They sometimes pull up a little sprouting corn, but are not nearly so destructive in this respect as the Crows. Dr. Warren tells of the dis- section of thirty-one birds that were shot in a Pennsylvania cornfield: nineteen had only cutworms in their stomachs ; seven had taken some corn, but a very large excess of in- sects, mainly beetles and cutworms, with earthworms; the remaining five had eaten chiefly beetles. The Crow Black- bird industriously follows the plow, and picks up many beetles, grubs, cutworms, and some earthworms. In spring and summer its food in Massachusetts is mainly insects. Nearly twenty-five hundred stomachs of the species have been examined in Washington. The food for the year was composed of over thirty per cent. animal and almost seventy per cent. vegetable matter, which shows that the birds are al- most as omnivorous as the Crow. Insect food forms twenty- seven per cent. of the whole. The greater part is taken in summer. Beetles, particularly Scarabeids like the “June bug” or “rose bug,” Carabids or ground beetles, curculios ~ or weevils, form a large part of the food. The Grackles seem to be fond of white grubs, and the stomach is often packed with these insects. Grackles are not so skillful in digging them out as is the Robin, but they are sly enough to snatch the grub away from the Robin when he has secured one. They are very destructive to grasshoppers and locusts, 316 USEFUL BIRDS. which in August make over twenty-three per cent. of their food, and are found and eaten by them in nearly every month of the year. A good many caterpillars are eaten, mainly those species that are found on the ground, such as cutworms and army worms; but the birds flock to caterpillar outbreaks, eating both hairy and hairless species. Crow Blackbirds de- stroy both gipsy moth and brown-tail moth; bugs, ants, and spiders are eaten also. Mice, birds and eggs, frogs, lizards, salamanders, snakes, fish, crustaceans, mollusks, and snails form a portion of the Grackles’ food. The vegetable food, beside corn and other grains, consists of rather a small quan- tity of fruit, mainly wild seeds, nuts, acorns, and weed seed. Seventy per cent. of the food of the young birds consists of insects similar to those eaten at the same season by their parents. To sum up: the Crow Blackbirds, though destructive to corn and to a less extent to other grain, are indispensable because of the vast amount of insects they destroy. In the west they are so numerous that the farmer often must defend himself against them; but in Massachusetts their destruc- tion is not often necessary, and they are seldom shot by~ husbandmen except when gathered in flocks among the corn. Meadowlark. Old-field Lark. Marsh Quail. Sturnella magna magna. Length. — Ten to eleven inches. Adult.— Upper parts brown, with many dark-streaked, pale-edged feathers; tail short; outer tail feathers largely white; a light line through middle of crown; a light line over eye, yellow from eye to bill, and dark streak behind eye; below, chiefly yellow, with a large black crescent on breast. Adult in Winter. — Redder above; lower parts duller. Young. — Under parts paler; crescent replaced by a few black markings. Nest. —On the ground in a field; usually arched over. Eggs.— White, with brown spots. Season. — Resident. This handsome and well-known bird is a common summer resident of Massachusetts, and often remains all winter in seasons when there is little snow, or in favored localities. In the southeastern part of the State, especially in Barnsta- ble County, it may usually be seen in winter in sheltered situations on marshes or meadows. During and after snow- BIRDS OF FIELD AND GARDEN. 317 storms it becomes quite domesticated, and seeks food along roads and about dooryards and poultry houses; but ordinarily the Lark is a shy bird, and keeps well out of gunshot in the open fields. This species has learned caution in the north because of continual persecution by gunners; but I have seen Meadowlarks as tame as Sparrows in the pine barrens of southern Florida. The Lark is a bird of the meadows, as its name implies; but it also frequents dry fields, and sometimes may be seen perched high in a tree on some hilltop, from which it sings its clear refrain. Old fields are favorite nesting places, probably in part because the dead and uncut grass offers concealment for the nest, and in part because in such fields the nest is undisturbed by the mower. This bird is an adept at concealing its nest, which sometimes has a cov- ered approach. It resorts to strata- : gem to puzzle the searcher. When Fig. 141.—Meadowlark, one-half natural size. SSA the female comes from or goes to the nest she often runs through the grass for some distance, and seldom flies to it directly. Mrs. Irene G. Wheelock, in recording her attempts to find a nest, states that the male carried butterflies and dragon flies time after time to a point one hundred yards from the nest, in an apparent attempt to befool the searcher. Its flight is an alternation of fluttering and slow sailing, and it usually shows its white tail feathers often, especially on rising and alighting. When on the ground it does not hop like the Robin, but walks more like the Crow, occasion- ally opening and closing its tail, showing the white feathers conspicuously. Its common alarm note is a rather sharp chatter, not loud, but shrill, which often follows or precedes a long, pierc- ing call. The ordinary song is a rather plaintive but pleas- ing whistle of a few notes, the last usually held for several seconds. This song is uttered either from the ground, from 318 USHFUL BIRDS. a perch, or while the bird is on the wing. Rarely a talented individual soars aloft, uttering an ecstatic flight song, which compares favorably with that of the most celebrated song- sters. I have heard this in full volume but once, and then found it difficult to believe that it came from the throat of a common Meadowlark. It was not at all suggestive of that bird’s ordinary song, except in some of the last notes, nor did it in the least resemble that of the Western Meadow- lark ; it more resembled the music of the Bobolink, but was louder and not so hurriedly given. The Meadowlark is now quite generally protected by law at all times, and no bird more fully deserves such protection. It is practically harmless, and takes nothing that is of any use to man except a few small grains and seeds. On the other hand, it is one of the most useful birds of the fields, perhaps the most valuable. In summer almost ninety-nine per cent. of its food consists of insects and allied forms. It eats about all the principal pests of the fields, and is particu- larly destructive to cutworms, hairy ground caterpillars, and grasshoppers. In summer it gets but few seeds, but in fall and winter it takes many weed seeds. It visits weedy corn- fields and gardens in search of ragweed and other seeds, of which it devours enormous quantities, which make up about one-third of the food for the year. Even in winter it pre- fers insects when it can get them. Mr. C. W. Nash says, in his “Birds of Ontario,” that several specimens shot in winter contained only insects, taken about market gardens. Professor Beal says that even in December and January the insect components of the food are thirty-nine and twenty- four per cent., respectively ; and in March, when insects are still hard to obtain, the quantity rises to seventy-three per cent. Professor Beal makes an ingenious and very moderate estimate, from which he concludes that twenty-five dollars’ worth of hay is saved annually in an ordinary township by Meadowlarks, through their destruction of grasshoppers, and he values hay at only ten dollars per ton. When we consider that grasshoppers, green grasshoppers, locusts, and crickets all together form twenty-nine per cent. of the food of this bird for the year, and that it is almost entirely in- BIRDS OF FIELD AND GARDEN. 319 sectivorous by preference, and when we consider also the additional injury that must occur were the insects and their progeny allowed to increase through a lack of Meadowlarks, the value of the bird becomes evident. Red-winged Blackbird. Marsh Blackbird. Agelaius pheniceus pheniceus. Length.— About nine and one-half inches. Adult Male. — Black, with a light-edged scarlet patch at bend of wing; often only the light edges of this patch show when the wings are closed. Adult Female.— Smaller; grayish-brown, streaked heavily with dark brown or blackish. Young. — Similar to female. Nest. —In grass or bush; rarely in a tree. Eggs.— Pale bluish, with spots and scrawls of darker colors and black. Season. — March to August. Few birds are better known than the Red-winged Black- bird. Almost every small bog hole or swamp about the farm harbors a pair or more of these birds. They are common about ponds and meadows. The males arrive in flocks, usually in March, and sometimes may be heard singing gaily while the ground is still deeply covered with snow. Their song is as characteristic a sign of spring as is that of the early wood frog, and their notes have something of the same quality. They carry . Fig. 142.— Red-winged Black- n suesestion Ol borey- ooze. The: < pirg, male, onehalt natural common note is a single chuck, and — the ordinary song resembles the syllabies quong-ka-reee’, the first two uttered quickly. Some individuals have a more musical song, ending with a jingle akin to that of the Bobolink. Although the Red-wings almost invariably breed in the swamp or marsh, they have a partiality for open fields and plowed lands; and most of the Blackbirds that nest in the smaller swamps adjacent to farm lands get a large share of their food from the farmer’s fields. They forage about the fields and meadows when they first come north in spring. Later, they follow the plow, picking up grubs, worms, and 320 USEFUL BIRDS. caterpillars; and should there be an outbreak of canker- worms in the orchard, the Blackbirds will fly at least half a mile to get cankerworms for their young. Wilson estimated that the Red-wings of the United States would in four months destroy sixteen thousand, two hundred million larve. They eat the caterpillars of the gipsy moth, the forest tent caterpillar, and other hairy larve. They are among the most destructive birds to weevils, click beetles, and wireworms. Grasshoppers, ants, bugs, and flies form a portion of Fig. 143.—Red-wingea the Red-wings’ food. They eat com- eee ee ae paratively little grain in Massachusetts, although they get some from newly sown fields in spring, as well as from the autumn harvest; but they feed very largely on the seeds of weeds and wild rice in the fall. In the south they join with the Bobolink in devastating the rice fields, and in the west they are often so numerous as to destroy the grain in the fields; but here the good they do far outweighs the injury, and for this reason they are protected by law. Cowbird. Cow Blackbird. Cow Bunting. Molothrus ater ater. Length. — Seven and one-half to about eight inches. Adult Male. — Lustrous black, with a rich, lustrous brown head and neck. Adult Female. — Brownish-gray, slightly darker on wings and tail. Nest. — That of some other bird. Eggs.— White, speckled all over with brown. Season. — April to October. This much-maligned bird, which builds no home of its own, and depends on others to hatch and rear its young, is, nevertheless, an essential part of nature’s plan. Birds that rear their own young are confined by necessity to a certain radius about their nests; but the scattered bands of Cowbirds form a wandering, unattached light squadron of insect de- stroyers, which all summer long can go wherever their pres- ence is most needed. In the warmer months of the year they feed almost entirely on insects, but during the colder months they live on seeds. BIRDS OF FIELD AND GARDEN. 321 Throughout the season the sexes intermingle promiscu- ously, from the time the females arrive in the spring. As usual with other species, the males come first, and may be seen singly, in small flocks, or with other species of Black- birds. They perch in the tops of tall trees, and their only song is a long, thin whistle, high keyed and little varied. The common note is a chuck. The females soon arrive from the south, and then flocks may be seen in which they usually predominate. The eggs are deposited from April to June, in the nests of other and usually smaller birds. An egg is dropped slyly when the owner of the nest is absent, and generally after she has laid some of her own. Sometimes the little foster mother refuses to adopt the offspring of another, and abandons the nest, or builds another nest above the first one; but usually she good-naturedly settles down upon her nest to incubate. The Cowbird’s egg is larger than those of the foster mother, and is commonly deposited in the center of the nest. Per- haps it gets more heat than the other eggs, for it hatches first. The young Cowbird grows faster than the other chicks, and gets about all the food. It is soon able to dislodge its smaller and weaker foster brothers and sisters, who perish ; then the young Cowbird monopolizes the entire time and care of its foster parents. It is no uncommon thing to see a small War- bler or a Chipping Sparrow feeding a young Cowbird twice its own size; but as soon as the stranger is well able to shift for itself, it joins a flock of its own species. Grasshoppers seem to be its favorite animal food, but leaf hoppers, also very destructive to grass, are freely taken. Undoubtedly the Cowbird is of great benefit to pastures, where it follows the cattle about, picking up insects that start up around them. Weevils and curculios are commonly eaten ; also caterpillars, but to a less extent than other Black- birds eat them. Cowbirds take wasps, ants, and flies in small quantity, anda number of spiders. Vegetable food, however, forms the main part of the Cowbird’s subsistence in spring and fall, and, according to Professor Beal, it constitutes nearly seventy per cent. of all the food for the year. A large part of this, however, is weed seed, of which the seed 322 USEFUL BIRDS. of ragweed, barn grass, and panic grass form probably the greatest portion ; but the Cowbird eats more grain than the Red-winged Blackbird. Undoubtedly its food habits are on the whole beneficial ; but, as every Cowbird is reared at the expense of the lives of at least two other birds, the reputa- tion of the species suffers accordingly, and its social habits are certainly not exemplary, if judged by human standards. Bobolink. Skunk Blackbird. Reed Bird. Rice Bird. Dolichonyx oryzivorus. Length. — About seven and one-fourth inches. Adult Male.—In spring and early summer, mainly black; nape creamy buff; streaks on upper back grayish-white ; shoulders and lower back ashy-white ; in August and September the plumage resembles that of the female. Adult Female and Young.— Upper parts brown, dark-streaked; lower parts yellowish-brown, unstreaked. Nest. — On ground, in grass. Eggs.— Gray, spotted with brown and overlaid with dusky streaks, blotches, and serawls. Season. — May to September. The Bobolink is the harlequin of the spring meadows. He is a happy-go-lucky fellow, with his suit on wrong side up, the black below and the white above; a reckless, rollicking sort of a fowl, throwing care to the winds, and always bent on a lark. His spirits are of the effervescent kind, and his music bubbles irre- pressibly forth at such a rate that half a dozen notes seem to be crowding upon the Fig. 144.— Bobolink, male, ana army heels of every one uttered: CE a oo ee tag ie Indeed, this is about the only bird that completely baffles the latter-day “interpreters” of bird music. His notes tumble out with such headlong rapid- ity, in an apparent effort to jump over each other, that it is next to impossible for the scribe to set them down in the proper sequence of musical notation. Nevertheless, this harum-scarum expression of irrepressible joy is of the most pleasing character, and ranks among the finest music of the fields. BIRDS OF FIELD AND GARDEN. 323 The males chase each other madly, and swiftly pursue the females over the grass tops; or, sailing with down-bent wings, pour forth their torrent of music. The alarm note is a metallic chenk. When the young have been reared, the males begin to lose their striking dress, the song ceases, and early in August the Bobolinks are seen flying about in small flocks, uttering mellow chinks, as they prepare for their southern journey. In May, June, and July insects form about eighty-five per cent. of the Bobolink’s food. The bird is very destructive to grasshop- pers and caterpillars, particularly to the army worm. It Fig. 145.— Bobolink, female. eats some parasitic Hymenoptera, and this may be looked upon as a bad habit ; but otherwise little fault can be found with the Bobolink while it remains in the meadows of the north. Bobolinks once caused a great loss to the Atlantic coast rice growers, and in September most of their employees were engaged in shooting at or frightening the birds. Now, coast rice growing is a vanishing industry, and the birds are shot mainly for the market. This should be prohibited by law. It has reduced the number of birds breeding in the north, and Bobolinks are not so common in Massachusetts as they were years ago. They have been depleted some by early mowing, and their diminution from year to year is more and more perceptible. PIGEONS AND DOVES. This group of birds is now represented in Massachusetts by but one species, the Mourning Dove, as the Passenger Pigeon appears to have disappeared, and may now be ex- tinct. The Mourning Dove, which is often mistaken for it, is now protected by law at all times, and probably will be saved from the fate of the Pigeon. Presumably all the sup- posed “wild Pigeons” now reported by different observers in Massachusetts are Mourning Doves. 324 USEFUL BIRDS. Mourning Dove. Carolina Dove. Turtle Dove. Zenaidura macroura carolinensis. Length. — Nearly twelve inches. Adult Male. — Upper parts mainly grayish-brown, shaded with olive; head and neck brown, with a bluish overcast; sides of neck iridescent, with red- dish and golden reflections; a black spot below the ear; outer tail feathers and wing feathers show bluish when spread; all outer tail feathers have a black bar and a white tip; tail rather elongated and pointed; lower parts purplish, changing to yellowish on belly, bluish on sides, and whitish on chin. Adult Female.— Similar, but duller. Young. — Grayer than female; many feathers have whitish edgings. Nest.— A mere platform of sticks, at a moderate height in a tree, near trunk. Eggs.— Two; white. Season. — April to October. The Mourning Dove was never so abundant in this State as the Passenger Pigeon, for Massachusetts is near the north- ern border of its range; still, it was once common where it is now rare, particularly in western Massachusetts, but it is now so uncommon generally as to be of little economic importance. In some parts of Middlesex, Plymouth, and Barnstable counties it is still common locally in spring and summer, and its mournful cooing is heard almost daily. A variety of notes has been attributed to this species, but I can recall only the “coo,” and a twittering sound that appears to be made by the wings when it first rises in flight. This Dove is of no great value as an insect eater, for it feeds largely on seeds. Wheat, oats, rye, corn, and barley are all eaten, forming about thirty-two per cent. of the food, but perhaps three-fourths of this is waste grain picked up in the fields. Buckwheat is a favorite food. Some grain is taken from newly sown fields, but the greater part of the food consists of weed seeds. Nash says that the crops of these birds are often so full of seeds that, if a bird is shot, the crop bursts open when it strikes the ground. He says that bindweed is a favorite food. A Dove that was exam- ined at the Department of Agriculture was found to contain ninety-two hundred seeds, mostly those of noxious weeds, and none of useful plants. This was rather an unusual num- ber, but it shows what the bird is capable of doing as a helper on the farm. BIRDS OF FIELD AND GARDEN. 325 GROUSE, PARTRIDGES, ETC. The Grouse are treated among the birds of orchard and woodland, on pp. 266-274. Bob-white. Quail. Colinus virginianus virginianus. Length. — About ten inches. Adult Male.— Upper parts mainly reddish-brown, with dark streaks and light edgings; forehead and broad line over eye white; throat patch white, bor- dered with black; tail short, gray ; crown, upper breast, and neck all round brownish-red ; breast and belly whitish, narrowly barred and marked with crescent-shaped black marks; sides reddish-brown. Adult Female.—Similar, but duller; without the black on the head, and the white mainly replaced by buff. Nest. — On ground, among bushes, grass, or grain. Eygs. — White, often stained with brown. Season. — Resident. No bird is more typical of the southern New England farm than the Quail.! Its clear and mellow call is still a char- acteristic sound of spring and early summer. The plowman hears it as he drives his team afield, and it mingles with the ringing sound of the whetstone on the scythe. The Quail is an inhabitant of the transition zone, and cannot maintain itself much farther north than Massa- chusetts except along the coast, where the winters are less severe than in the interior. It gets its sustenance mainly from the ground ; hence, when Fig. 146.— Bob-white, one- the earth is deeply covered with snow ae ys its food is hard to obtain, and many Quail are starved or frozen under the snow during hard winters, as was the case during the winter of 1903-04. Such winter killings occur many times during a century, and the birds have always partially recovered their lost ground; but unless they can receive absolute protection for a series of years after such seasons their recovery will be rendered increasingly difficult, 1 The name Quail is a misnomer, for the bird is not a Quail, but more nearly a Partridge, as it iscalled in the south. It resembles the Quailof Europe, hence the New England name, which will undoubtedly “‘stick.”’ 326 USEFUL BIRDS. on account of the great accession to the number of gunners. The Quail is not easily extirpated, for, unlike the Wood- cock, it waits until the weather is mild before beginning its nest; and it is very prolific, and sometimes rears more than one brood in a season. From twenty-four to forty-two eggs are said to have been found in a single nest, but these were probably the product of more than one bird. The pure strain of the old race of Massachusetts Quail is believed to have been practically eliminated by shooting and winter killing, and most of the birds now existing in the State are supposed to represent a mongrel race, — an admix- ture of the blood of Massachusetts birds and those of the south and west. Some naturalists assert, however, that no introduced southern birds survive their first winter in Massa- chusetts ; but Mr. H. H. Kimball, secretary of the Massachu- setts Fish and Game Protective Association, who has been instrumental in introducing and “planting” many of these birds, has trustworthy evidence that in some cases at least they have wintered well and become established. The breeding season of the Bob-white extends through May, June, and July, and the males may be heard calling occasion- ally as late as the first of October. According to Dr. Judd, Mr. Robert Ridgway found a clutch of freshly deposited eggs in a nest in southern Illinois on October 16, and Hie: Munger found another set in Missouri in January. The parent bird was found, later, frozen on the nest. This seems to indicate a latent tendency, like that of the domestic fowl, to lay eggs at any season of the year, —a trait which might give added value to the species in domestication. The nest is usually made in grass land, in some old field, or in a bushy thicket along its border, and is often well concealed. Young Quail are said to run about the moment they are hatched. While this may be an exaggeration, probably all the eges in a litter are hatched at about the same time, and the young birds are able to leave the nest very soon after- ward. The first downy chicks are usually seen in July. They are very small, and are streaked somewhat like Bantam or Brown Leghorn chicks. Their protective coloring is such as to render them invisible when motionless on the ground, BIRDS OF FIELD AND GARDEN. 327 where they squat with closed eyes at the first danger signal. The driver of my heavy farm wagon saw a mother bird one day in the road before him. He stopped the slow team at once, but too late to save three of the young that, hidden in the rut, had been run over by the wheels. He found and picked up a live one squatted there. All through the breeding season the common call of the male, “ Bob-white,” or “ Bob-Bob-White,” may be heard, particularly just before a rain, and the farmers translate the ery as “ More-wet,” or “Some-more-wet.” At a distance this call is a clear whistle. Dr. Judd says that when uttered within ten feet of the hearer it loses its melody and becomes a mere nasal shriek. At the approach of danger the bird can reduce the volume of sound at will, so that when it stands within twenty or twenty-five feet of the listener its whistle seems to come from a point many rods away, — an accomplishment which I have heretofore noted as possessed by other birds. The call when thus subdued is of exactly the same tone and pitch as usual, quite as clear, and deliv- ered in exactly the same way. So far as my observations go, the bird when calling sits or stands in its usual position, throwing up its head slightly in enunciating “Bob,” and then throwing it well back and pointing the bill skyward when utter- ing the “white,” as is shown in the : “Bob,” “ white.” accompanying figures, after sketches pig. 147.—The morning from the wild bird. call. Dr. Judd watched a Quail that called in a somewhat simi- lar manner, except that when three notes were given it de- pressed its bill almost to its breast in uttering the second. He thus describes the calls of the mated birds : — Then followed a series of queer, responsive “caterwaulings,” more unbirdlike than those of the Yellow-breasted Chat, suggesting now the call of a cat to her kittens, now the scolding of a caged gray squirrel, now the alarm notes of a mother Grouse, blended with the strident cry of the Guinea Hen. As a finale, sometimes came a loud, rasping noise, not unlike the effort of a broken-voiced Whip-poor-will. 328 USEFUL BIRDS. When the broods are scattered by the gunner, they are reassembled again by a whistled call of the old bird, which has been given, “/a-loi-kee, ha-loi-hee,” and is answered by the whistled, repeated response, “awhoil kee.” The syllables are almost run together. The first call is uttered with a rising and the other with a falling inflection. It is plainly the rallying call and answering cry. When the scattered covey gets together, musical twitterings are often heard. At night they repair to some favorite locality, where they sleep on the ground in a ring, heads out and shoulder to shoulder. In this formation there are always some birds to face and discover danger, upon whichever side it approaches. One spring into the air gives each bird wing room, and off they fly in all directions, an animated “feathered bombshell,” exploding in the darkness with a roar of pinions sufficient to startle and possibly baffle an enemy, as the belated traveller who has happened to disturb them at night will attest. They sometimes gather into the same formation in the daytime. In Massachusetts the birds usually roost in thickets, black- berry tangles, or woods, and often use the same roosting place for several nights in succession. They feed largely in fields, gardens, and cultivated land ; but when pursued they often take to the swamps or woods, where they perch in trees, usually on the side farthest from the pursuer, sitting upright on the branches or crouching close to the trunk. Their habits during the shooting season are well known. A great deal of ink has been used in discussing the question whether the Quail is able to “hold its scent,” as it is a well-known fact that dogs are frequently at fault in trailing this bird. When the dog is alone, the bird, even in open ground, apparently gives itself little uneasiness, but simply settles quietly down where it stands until it lies flat on its breast, with head drawn down so close to the shoulders that it might well pass for a brown clod. It remains thus, allows the dog to pass within a few yards or even a few feet, and keeps quiet until all danger is past. But let a human being appear, and much greater precautions are taken. I have seen a bird in open ground run and hide in a slight hol- low, or conceal itself by crouching between two sections of BIRDS OF FIELD AND GARDEN. 329 a stump. If there are trees near by, it runs quickly and squats upon the ground behind a tree or close to its trunk. Its resemblance to its surroundings is so close that it seems to disappear, effacing itself before one’s eyes like a witch in a fairy tale, as it flattens itself on the ground. Bob-white naturally “lies to a dog,” for it seems to have a supreme contempt for the blundering animal. This apparent con- fidence in its own invisibility is often fatal, however, where trained bird dogs are entered against it. There is some reason to believe that the Quail is migratory at times. Some people relate that Quail have been seen flying south in large flocks at the approach of winter ; others aver that many have been drowned while crossing large bodies of water; still others tell us that the birds migrate long distances by running ; but every covey that I have been able to watch has passed the winter not far from the place where it was reared. These observations have often been interrupted by the destruction of the entire brood by farmers, gunners, or sportsmen. A great many broods “migrate” in this manner, never to return. Still, probably Grouse and Quail sometimes become restless in the fall, and move about the country; but it is extremely doubtful if there are any general movements of either species that can be designated as autumnal or vernal migrations in the ordinary sense in which these terms are applied. The feeding habits of the Bob-white are such that it must be ranked by the farmer as one of the most useful birds of field and garden. It is very nearly harmless, as it takes little grain or fruit. Occasionally in the cornfield it pecks at a broken-down ear of corn, and it picks up a good deal of waste grain in the stubble of oats and wheat. It sometimes eats a few strawberries, but these are evidently not a favorite food, for birds in captivity have refused them when hungry. On the other hand, Bob-white, during spring and summer, feeds on many of the most destructive pests of garden and field, and in fall and winter eats great numbers of the seeds of many noxious weeds. Dr. Judd makes some interesting calculations regarding the quantity of insects and weed seeds consumed by the Bob-white in Virginia and North Carolina. 330 USEFUL BIRDS. Estimating that there are four birds to each square mile in these States, and that each bird consumes half an ounce of weed seed daily from September 1 to April 1, he concludes that one thousand, three hundred and forty-one tons are eaten by Quail annually in the two States; and, as insects form about one-third of the birds’ food from June 1 to August 1, he estimates that Quail consume three hundred and forty tons of insects in these States within those two months. It is somewhat remarkable that the Quail feeds on most of the superlatively destructive crop and garden pests of North America, among them the Rocky Mountain locust, chinch bug, cotton worm, Mexican cotton boll weevil, army worm, Colorado potato beetle, striped cucumber beetle, May beetle, bean leaf beetle, and several species of grasshoppers. More than one-third of its food for August consists of insects, of which very few are useful species. The Quail eats many ground beetles, but mainly those species which feed to some extent on vegetation, and which become destructive if allowed to increase unduly. It is probably the most effective enemy of the Colorado potato beetle. A correspondent wrote me that he had watched the Quail feeding on potato beetles and other insects on his farm, and believed that each bird raised on his place was worth five dollars to him as an insect killer. He declines to allow any more Quail to be killed on his farm. Dr. Judd says that Mr. C. E. Romaine of Crockett, Tex., wrote that Quail were nesting about his fences and even in his garden, and had kept his potato patch entirely free from the “Colorado potato bug.” From seventy-five to over one hundred potato beetles have been found in Quails’ stomachs. Clover-leaf beetles, corn-hill bugs, wire- worms, and many other beetles and larvee are eaten. Pro- fessor Aughey found five hundred and thirty-nine locusts in the stomachs of twenty-one birds, or an average of twenty- five apiece. The Bob-white not only finds many cutworms, but picks up the parent moths, as well as ants, flies, and spiders. The young are at first fed almost entirely on insect food. Mr. Nash says they eat their own weight of insects daily. As an insect eater the Quail is worth its weight in gold to BIRDS OF FIELD AND GARDEN. 331 the farmer and gardener. If it could be protected and in- creased in numbers, and if it could be allowed to come con- fidently about the farmstead, perhaps it would become the most useful bird of the garden. In late spring and early summer its vegetable food is largely confined to such seeds as it can pick up, and to green grass, chickweed, sorrel, clover and other succulent leaves, and some buds. In the perennial problem of weed destruction there is no greater ally of the farmer than this bird. It eats the seeds of over sixty species of weeds. Seeds form over one-half its food, and among them the rag- weed seems to be the favorite. As many as two hundred to three hundred seeds of smartweed, five hundred of the red sorrel, seven hundred of the three-seeded mercury, and one thousand of ragweed have been eaten at a meal. According to Dr. Judd, five thousand seeds of green foxtail and ten thousand of pigweed have been found in a single bird. As the fall advances, Quail find acorns and pine seed in the woods, and in the thickets they seek wild fruit that nature provides for winter bird-fare. Although the Quail feed by preference on the ground in winter, when the snow is deep they seek shelter in tangles and thickets, where wintering berries grow. Wherever the ground is swept bare of snow by the wind the Quail wander about, feeding on dried leaves of plantain and other plants, with such weed seeds and dried grasses as they can find. Mr. William Brewster tells me that the native Quail of New England eked out an existence on the berries of the red cedar when the snow lay deep on the ground, but that the introduced Quail apparently have not acquired the habit, and so succumb more readily to the New England winter. From all the studies made regarding the food of the bird, it is clear that the farmer should never shoot it, or allow it to be shot on his land. If the Massa- chusetts market must be supplied with Quail, they must be reared artificially, for the time is coming when no Quail can be obtained from other States. The laws of most States now prohibit their shipment to other States, and there are not birds enough here to supply a tenth of the demand. 332 USEFUL BIRDS. PHEASANTS. Pheasants are closely related to the Pea Fowl and the Domestic Cock. They are natives of Asia, but several species have been introduced into England and America. Ring-necked Pheasant. Phasianus torquatus. Length. — Varying according to length of tail, but reaching three feet. Adult Male.— Head and neck dark, burnished blue, with reflections of other shades; a white ring around neck; back orange-brown to reddish, with black and other variegations; breast coppery-chestnut, with purplish edgings and some greenish gloss; tail olive-brown, with red-purplish edgings, and crossed with blackish bars; bare skin of head scarlet. Adult Female.— Smaller; tail shorter, and general plumage brown, marked with blackish. Young. — Similar to female. Nest.— On ground. Eggs.— Similar to those of a small domestic fowl. Season. — Resident. The Ring-neck was first imported into Oregon from China, and was introduced into Massachusetts from the Pacific coast in 1894 by the Massachusetts Commissioners on Fisheries and Game, who have since propa- gated the birds and liberated them in various parts of the State. It was brought to this country under the name of Mongolian Pheasant, but is quite distinct from that species, to which it has only a general likeness. When its Fig. 148.— Ring-necked Pheasant. acclimatization here was proposed, I wrote the late John Fannin, then curator of the Provincial Museum of British Columbia, inquiring whether the Pheasants which had been introduced there had proved injurious to native birds or farm crops. He replied that on Vancouver Island, where Pheasants were then numerous, they had driven the Grouse to the woods; but that this did little harm, as Grouse were naturally wood birds, while the Pheasants were birds of the open country. They were doing some damage to crops, but this had not caused any ery for their abatement, and the people generally considered them a valuable acquisition. BIRDS OF FIELD AND GARDEN. 339 In 1897 Mr. F. H. Mosher confined two adult birds at Malden. ‘They were given some choice of food, and were fond of grain, weed seeds, vegetables, fruit, and insects. They ate seventy full-grown gipsy moth caterpillars in half aday. Within another half day they ate one hundred and eight egg-bearing female gipsy moths. No young birds could be secured for experiment. In 1903 complaints began to come in that Pheasants were injuring crops and killing game birds. Circulars sent out to three hundred correspondents in different parts of the State brought replies regarding these birds from over two hundred people. A considerable number of correspondents had never heard of the species in their vicinity. Forty-two stated that the bird was not then present in their sections. Thirty asserted either that it was very rare in their vicinity or had disappeared. Pheasants were reported as numer- ous only near Winchester, where the State pheasantry was located, in a few other places where they were being bred, and in portions of Essex County, where they had an oppor- tunity to breed on large estates on which no gunning was allowed. Forty-five persons stated that Pheasants were doing no injury to crops or game birds. ‘Three persons com- plained that Pheasants were killing Bob-whites and Ruffed Grouse; and nine asserted that Pheasants were injuring crops, principally corn, tomatoes, peas, beans, cabbages, and potatoes. Practically all these complaints came from those few sections where the birds were becoming numerous. Pheasants have taken more of my sprouting corn than have either Crows or squirrels. They do not pull it up, as the: Crows do, but dig it up with the beak. In other localities they are said to “pull more corn than the Crows.” In the fall they eat what corn they can reach from the ground, and in Wareham they are said to dig “bushels” of potatoes. The evidence regarding the killing of game birds was merely circumstantial. Several reputable persons asserted that since Pheasants had become common they had found “both Partridges and Quail with their heads pecked open.” Other birds of these species were said to have borne evi- dence of having been slain in combat with a larger bird. 304 USEFUL BIRDS. One man is reported to have seen a Pheasant kill a Par- tridge. I watched the Quail and Pheasant feeding together at Wareham, and one day saw a Pheasant strike a Quail on the head with its beak, exactly as a hen will sometimes strike and kill a strange chicken. In this case, however, the Quail escaped, but gave the Pheasant a “wide berth” there- after. One observer reports that a lady was feeding Quail in winter, and that a cock Pheasant habitually drove the Quail away and ate the grain. Pheasants do much good by destroying insects, and there need be no fear that these birds will ever become numerous enough throughout the State to do great harm. Generally they appear to be unable to hold their own. The common report is that “Pheasants have been turned loose here, but have all disappeared.” No eatable bird of the size of a Pheasant can ever increase much in numbers in Massachusetts except on land where it can be protected from all shooters. SNIPE, SANDPIPERS, WOODCOCK, ETC. Most of the birds of this order, which includes the Plover, are known as shore birds or marsh birds, and are seen mainly in migration on the shores of the sea or large bodies of fresh water. Three species either are, or once were, common summer residents of this State, and all three go to fields or cultivated land for a large part of their food. One, the Spotted Sandpiper, is still quite common ; and another, the well-known Woodcock, may again become so if it can be protected from excessive shooting. Another still, the Bartramian Sandpiper or Upland Plover, which was once a common summer resident of upland fields, has long been on the road to extermination, and can now be saved only by enacting and enforcing stringent laws for its protection in those States where it breeds, as well as in the more southern States, where the birds find neither rest nor mercy. Most of the other species of this order, which once migrated along the coast in countless numbers, are of economic importance principally as food; but, with few exceptions, the larger species are so reduced in numbers that they are at present of little account in any economic sense. BIRDS OF FIELD AND GARDEN. 399d Spotted Sandpiper. Tip-up. Teeter. Actitis macularia. Length. — About seven and one-half inches. Adult.— Above, olive-brown, ash-tinged; below, white, spotted with rounded blackish marks; a row of white spots on the wing; outer tail feathers white-barred. Young. — Breast unspotted, white with a slight grayish cast. Nest. — On ground, on the shore of a pond or river, or in a field or pasture. Eggs. — Buffy, thickly speckled with dark brown and black; very large for the size of the bird, and quite pointed at small end. Season. — April to September. The Spotted Sandpiper, once a common and familiar bird along all our ponds and streams, is still fairly common in suitable localities throughout the State. It is not a gre- garious species, nor does it travel much along the seashore, and so it has largely escaped the decimation that many other Sandpipers have suffered at the hands of the gunner. It is the only Sandpiper commonly found about inland waters in June and early July. As it walks it repeatedly raises and lowers the hinder part of its body with a teeter- ing motion. This is particularly noticeable when the bird is alarmed, and uttering its cry of peef-weet, peet-weet. This note is often repeated when the bird is startled, and may be heard along the sandy margin of ponds or rivers in the dusk of evening. Here it wades in, at times up to its belly. On occasion it can swim well, and sometimes when wounded and hard pressed it will dive deeply, using its wings and flying swiftly under water, like a Loon. It often builds its nest and rears its young in or near cultivated lands, at a con- siderable distance from any water. The young are able to run about soon after they are hatched, and they wander away from the nest, brooded and cared for at need by the mother, who is very solicitous for their welfare. Their safety lies in their protective coloring. They are fed largely on insects, and the parents in summer seem to be very fond of similar food, which they pick up about cultivated fields. Like all other birds of the field, this Sandpiper catches grasshop- pers and locusts. Six of these birds dissected by Professor Aughey in Nebraska contained ninety-one locusts and one hundred and forty-two other insects. 330 USEFUL BIRDS. Bartramian Sandpiper. Upland Plover. Bartramia longicauda. Length. — Nearly twelve inches. Adult.— Upper parts generally light tawny-brown, with dark or blackish mark- ings; outer tail feathers barred with black and brown, and tipped with white; inner webs of larger wing feathers barred with black and white; breast and sides buffy or tawny, marked lightly with blackish; belly whitish. Nest. — A mere hollow in the ground. Eggs. — Butfy or whitish, speckled with dark brown. Season. — May to September, This fine, large Sandpiper, commonly called the Upland Plover, is a bird of the grass-field and pasture. It is not often seen near the shore, except as it feeds in migration on the grassy hills of Ipswich and other coast towns, or on Nantucket, where it breeds. It is a bird of the uplands, often found breeding in the interior, at long distances from rivers or ponds, and usually in upland mowing fields. Forty years ago it bred commonly in considerable areas of the State, but now it is rare or wanting everywhere in the breeding season except in a few localities in some counties. Its note is a melodious, long, rolling whistle, uttered much in flight. Just after the bird alights it raises its wings high over its back, stretches them, and then folds them in place. As the law now protects this bird at all times, it is to be hoped that its numbers will increase, as it is one of the most valuable birds of the field. It is an indefatigable insect hunter, living very largely on such insects as grass-eating caterpillars and grasshoppers. Woodcock, Philohela minor. Length. — Ten to twelve inches; bill nearly three inches. Adult. — Upper parts brown and russet or buff, mixed with gray and marked with blackish; back of head black, barred with yellowish; dark line through eye to bill; under parts pale, warm brown, varying in intensity ; tail black, tipped with white; eye large, well back and high up. Nest.— On ground in moist land. Eggs. — Large, buff-colored, with chocolate and stone-gray spots and markings. Season. — March to November; rare in winter. This favorite game bird was once a common summer resi- dent of this State, but is now becoming rare in the breeding (ASOTOYPUIG UBo|Toury WOT) (‘est] WOIy ydetsojoyd) wydo0ospoo~A uUesTIOULY —*XIXK ALWId BIRDS OF FIELD AND GARDEN. 337 season. It feeds in low, swampy woodland, boring in the mud for worms, and also in low pastures, where it destroys many insects. In late summer it often goes to the uplands, where it feeds in cornfields, asparagus fields, fruit gardens, and pastures. At such times the bird may be seen among the currant bushes or vegetables, where in early morning it feeds with the Robins. When suddenly fiushed it sometimes rises with a tremulous whistling sound, similar to that made by the wings of the Mourning Dove. Although in summer it frequents fields, gardens, and pastures, it sometimes for- sakes them in very dry weather for the wooded shores of ponds or rivers. The Woodcock evidently feeds much at night or during the dusk of morning and evening, when it is almost always active. When startled in the daytime it is normally sluggish, and rises just over the tops of the bushes or undergrowth, flutters a short distance, and alights ; but late in the fall a strong bird that has been hunted and shot at will start up like a flash and fly wild high and far, sometimes fanning the air so rapidly with its wings that they appear as a mere nebulous haze, like those of the Humming- bird in flight. Its curious flight song is uttered in the breeding season, when it rises high in the dusk of evening, sending back a series of twittering and whistling sounds. The Woodcock is hunted throughout its range. As it grows rarer in the north, gunners and sportsmen follow it south in winter. Great numbers of Woodcock are slaugh- tered there when all the birds of the species are massed in a limited area. Wilson’s Snipe. Gallinago delicata. Length. —'Ten and one-half to eleven and one-half inches; bill about two and one-half inches. Adult.— Upper parts brownish-black, varied with bay and tawny; crown black, with a light central stripe; upper tail coverts tawny, with dark bars; tail feathers above bright chestnut, with a black bar near the tip, which is whitish ; beneath, white, but breast and sides tinted with brown, speckled and barred with dusky. Season. — Spring and fall. The Snipe is a not uncommon migrant, and may be found in favorable localities in late March and April, and again in 398 USEFUL BIRDS. September and October. It is not an upland bird, but is seen chiefly in fresh-water meadows and lowlands along streams. It is sometimes met with in low, moist gardens. Mr. William Brewster says, in his “ Birds of the Cambridge Region,” that during exceptionally wet autumns great num- bers of Snipe occasionally visit the truck farms of Arlington and Belmont, to feed in the water-soaked fields of corn, pota- toes, and other crops. As they do not injure the crops, but probe the ground with their long bills, in search of worms and larve, it is probable that they do considerable good at such times. The Snipe when started from the ground usually goes off in a rather low, erratic course, but when well up in the air it sometimes makes a long and steady flight. It may be identified by its long bill. It seems to be some- what nocturnal, particularly on moonlit nights, when its note may be heard as it flies about the meadows or runs over them. Its alarm note is a harsh scacpe, and it utters also a mutied “bleat.” In spring the Snipe may be seen to rise from the meadow, mounting high in air, and then describing a great circle, sometimes fully a mile in diameter. During the flight it alternately rises and falls diagonally, producing each time in its descending course a loud, intermittent, win- nowing or whistling sound. A single individual will some- times continue this erratic circular flight for more than an hour. The sound, which appears to be made by the wings, is loud and clear, and may be heard at the distance of over one mile under favorable conditions. This is looked upon as the song flight of the Snipe. Apparently this habit is common in the mating and breeding season. The per- formance varies in length and the flight varies in altitude and direction, but it always is interesting and unique. Often, particularly in autumn, the Snipe will rise to a great height and then drop swiftly toward the earth, producing a thrumming noise with the wings. This is the so-called drumming of this bird. It feeds mainly on worms, grass- hoppers, and other small forms of animal life. This bird’s chief economic value lies in the delicacy of its flesh, and as an object of sport it has few superiors. BIRDS OF THE AIR. 339 CHAPTER IX. BIRDS OF THE AIR. There are no birds that so well deserve the designation “fowls of the air” as those that get their subsistence by pur- suing flying insects. Eagles and Vultures, Frigate Birds, Albatrosses, and some other sea birds, are endowed with great powers of flight, but all must descend to earth or water for their food ; but Swallows, Swifts, and Nighthawks win their sustenance from the air. They may be said. to live in the air, as, with few exceptions, they seldom alight except to rest or to attend to their domestic affairs. Unfortunately, the precise character of the food that many of these insect-eating birds procure high in air is not well known. We see the Swifts and Swallows darting about at great heights on clear summer days. We know that they must be catching flying insects; but what insects are flying at such a height, and why? They must be winged imagoes. Have they finished the business of life, and are they then sporting for a few brief hours in sunlight before death over- takes them? Are they migrating on the wings of the wind to fresh fields? Are they useful, or injurious, insects? No one knows. When Swallows or Swifts are flying low their food can be studied, and we have some definite information regarding its character at such times. They are known to take many parasitic Hymenoptera, but whether these insects are taken before or after they have propagated, whether most of them are mainly beneficial, or injurious, parasites, we have little information. Therefore, the effect produced by this habit of these birds is not well understood. We know, however, that_many injurious insects, such as flies, gnats, mosquitoes, moths, beetles, and plant lice, when about to reproduce their kind, are captured by these feathered skimmers of the air. We know that the Swallows pursue insects all day, until the 340 USEFUL BIRDS. twilight Bats come out; that Nighthawks “sweep the sky” through the later hours of daylight; and that Whip-poor- wills and Swifts are sometimes a-wing throughout the night. So that whenever insects are flying there are birds to pursue them. These birds of tireless pinion cover a wide territory, ‘and form a most potent check on insect life. SWIFTS. The spine-tail Swifts are Swallow-like birds that rarely if ever alight, except upon their nests or on the perpendicular sides of chimneys, rocks, hollow trees, or buildings. Chimney Swift. Chetura pelagica. Length. — About five and one-fourth inches. Adult.— Sooty-brown, paling to gray on throat and breast; tail rather short, spiny, and somewhat cigar-shaped, fan-shaped when spread; wings black- ish, long, narrow, and slightly curved. Nest. — Of sticks, glued to the wall of a chimney, hollow tree, or barn. Eggs.— White. Season. — April to September. The Chimney Swallow, as it is commonly called in the country, is one of the common sights of the summer twilight as it flies twittering above trees and house tops. When building its nest it breaks off twigs from the trees as it flies, and glues them to the chimney with its own saliva. It is a most expert insect catcher, and while hawking about for food for its young fills up its mouth and cheeks with insects, carrying them much as a chipmunk carries corn. It appears to be of a playful disposition. I saw a Swift one day in Concord apparently amusing itself by chasing Cedar Birds, that were fly-catching, over the river. When a Cedar Bird flew out over the water the Swift turned and chased it back into the trees again, often following so closely as to seem about to attempt to swallow the frightened and fleeing bird. Swifts catch flies, small beetles of various kinds, flying ants, bugs, grasshoppers, and other insects, and spiders. A notion exists that these birds introduce bedbugs into houses ; but so far as I know it has never been proven that there is any parasite common to both human beings and birds, with perhaps a single exception, — the woodticks. PLATE XXX. — Nighthawk. i PLATE XXXI.— Whip-poor-will. BIRDS OF THE AIR. a! NIGHTHAWKS, WHIP-POOR-WILLS, ETC. Birds of this family are especially fitted for the cap- ture of flying insects. Their beaks are small and weak, but their mouths are very capacious, their gullets are large, and their stomachs enormous. Some species fly high over open — country ; others live mainly in the woods. Together with the Owls and Bats they form a night police for the control of nocturnal insects. Our two common species, the Nighthawk and the Whip- poor-will, are frequently confounded ; but in appearance, habits, and color of eggs they are so different that this mistake could not be made except by the most superficial observer. Nighthawk. Bull Bat. Chordeiles virginianus virginianus. Length. — Nine to ten inches. Adult Male.— Above, black, gray, and tawny, mixed and mottled; wings long and narrow, crossed by a broad white bar which shows best in flight; tail slightly forked or notched, all except the two middle tail feathers crossed near tip with a white band; throat with a broad band of white; breast blackish, marked with gray; other under parts gray (sometimes tinged with buffy), barred with blackish. Adult Female. — Similar, but duller; throat band buff; no white on tail. Eggs.— Laid on bare ledge, rocky ground, or a gravel roof. Season. — May to September. The Nighthawk is neither a night bird nor a Hawk, un- less it may be called a mosquito Hawk. It flies chiefly at evening, but is seldom heard to cry after dark, and often may be seen flying about during the greater part of the day, sometimes at great heights. It has deposited its eggs on gravel roofs in cities for at least forty years, and prob- ably longer. It may be seen on summer afternoons hawk- ing for insects high over the city streets. The usual note is a s-k-7-r-k or s-c-a-i-p-e, a little like the call of Wilson’s Snipe, —rather a startling squeak when heard close at hand. This is the only loud note I have ever heard uttered by this bird, except the boom which accompanies its sudden de- scent through the air, and which is supposed to be made by the wings. The Nighthawk is very devoted to its young, which, like its eggs, are so protectively colored that they are 342 USEFUL BIRDS. almost invisible when seen from above as they squat on their natal rock. The mother either tries to drive an intruder away by approaching him with open mouth, or feigns lameness and so attempts to entice him into pursuit. It is probable that the Nighthawk is one of the most useful of all birds. It ranks next to the Flicker in the destruction of ants, and it takes them when they are flying and about to propagate. Professor Beal estimated that the stomachs of eighty-seven Nighthawks which he examined “contained not less than twenty thousand ants, and these were not half of the insect contents.” One Nighthawk’s stomach held remains of thirty-four May beetles. Great numbers of grasshoppers are caught by these birds. Potato beetles, cucumber beetles, leaf hoppers, bugs, and enormous quantities of gnats and mos- quitoes have been found in their stomachs. Nighthawks are absolutely harmless, as they never take fruit or grain, grass or vegetables. They are protected by law at all times, and should never be shot or molested. Unfortunately, they are now rare in parts of this Commonwealth where they were common years ago. Whip-poor-will. Antrostomus vociferus vociferus. Length.— About ten inches. Adult Male.— Above, finely mottled and barred with black, gray, and yellowish- brown; wings barred with black and brown; in general browner and not so dark as the Nighthawk; throat and upper breast blackish; other under parts buff, marked with blackish; a narrow white band just below throat, and terminal portion of three outer tail feathers white. Adult Female.— Similar, but band below throat buff, and tail feathers narrowly tipped with yellowish-white. Eggs.—On ground in woods; a creamy white, beautifully marked with shades of purple or lavender. Season. — May to September. In moonlit woods, through dark and shady dells, over wide pastures, and by the lone farmhouse door the Whip- poor-will flits softly through the silent night. Its flight is not as noiseless as that of an Owl; but the bird is even more mysterious than the Owls themselves. Its night flight and weird but melodious call have aroused supersti- tious fancies, until the Whip-poor-will has been accredited with all sorts of uncanny attributes ; nevertheless, it is, like = —— = Sees DT RNS «\ SoS TS Aa \\\ Z AAA PLATE XXXII.—A Swallow Roost. Tree Swallow. Cliff Swallow. Barn Swallow. Bank Swallow. WAAAY TAY | Ppa. \h AREAS (CH FD y BIRDS OF THE AIR. 343 the Nighthawk, one of the most friendly and useful of birds. Its supposedly ill-omened cry is sometimes heard from the ridgepole or from the orchard trees. Mr. James Buckham, in an interesting article in “Zion’s Herald,” calls attention to the fact that the Whip-poor-will is often a doorstep singer. It sometimes sits on the broad stone step before the farm- house door and calls whepowill repeatedly. When close at hand a soft cluck may be heard after each phrase. The bird may be distinguished from the Nighthawk by its shorter wings and long, rounded tail. The Whip-poor-will is an animated insect trap. Its enormous mouth is surrounded by long bristles which form a wide fringe about the yawning cavity, and the bird flies rather low among the trees and over the undergrowth, snapping up nocturnal insects in flight. It is perhaps the greatest enemy of night moths, but is quite as destructive to May beetles and other leaf-eating beetles. Hairy cater- pillars, like the tent and tussock caterpillars, as well as span- worms, grasshoppers, and ants, are sometimes eaten in large numbers. SWALLOWS. This family of daylight air-coursers has four common representatives in this Commonwealth. The Purple Martin, common until within a few years, is now generally rare except in migration. The illustration of the Swallow roost, although taken from a sketch made on the Musketaquid, was nevertheless suggested by Ernest Thompson Seton’s beauti- ful drawing, now reproduced in Chapman’s “ Bird-Life.” It shows the four common Swallows, and exhibits their habit of roosting in reeds. Swallows collect in flocks throughout the season of migration. In July, as soon as the young are reared, they begin to flock at night near bodies of water, and prepare to migrate. Swallows gather in winter in the great swamps of southern Florida in enormous flights, which, after uniting in one, discharge into the reeds at dusk. The de- scent of such a multitude resembles in appearance a great waterspout topped by an enormous black cloud. In the morning they scatter out over the country to feed. 344 USEFUL BIRDS. Bank Swallow. Riparia riparia. Length. — A little over five inches. Adult. — Dull mouse-brown above; white below; a broad brownish band across the breast; tail slightly forked. Nest.—In a hole made by the bird in a sand bank. Eggs.— White. Season. — April to August or September. This bird nests naturally in communities in sand banks along rivers, where the insects which form its food are plen- tiful. It early took advantage of man’s habit of digging into the sand, and probably increased in numbers as roads and railroads were cut through the country and sandpits opened. In this State its numbers have now decreased much, owing partly to the digging away of many banks in which it formerly bred, but more to incessant persecution by egg collectors, cats, “English” Sparrows, and other predatory animals. There are many sand banks in eastern Massachusetts formerly occu- pied by these birds which now know them no more. The note is a rather harsh twitter. This bird is almost entirely insectivorous, feeding on gnats, flies, grasshoppers, Tortricid moths, and many insects that are injurious to field and meadow grasses. Plant lice and spiders also form a portion of its food. Tree Swallow. White-bellied Swallow. White-breasted Swallow. House Swallow. Iridoprocne bicolor. Length. — Nearly six inches. Adult Male.— Dark irridescent blue-green above; white below; tail slightly notched. Adult Female.— Upper parts usually duller. Young. — Upper parts brown; a faint dusky collar across the upper breast. Nest. — In hollow tree or bird house. Eggs.— White. Season. — April to October. When the Tree Swallows left their natural homes in hollow trees to nest in bird houses they probably increased some- what in numbers; but since the advent of the “English” Sparrow the Tree Swallows have been driven away from many of the bird houses in villages and cities where they BIRDS OF THE AIR. 345 formerly dwelt, and some have gone back to hollow trees. This bird is still common wherever it can nest unmolested by the Sparrows, and sometimes, though rarely, it nests in the same bird house with these impudent foreigners. Its note is a rather sharp but sometimes musical twitter. It is probably more useful than the Bank Swallow, for it is oftener seen about houses and gardens, where it catches flies, mosquitoes, and garden insects. Leaf-eating beetles, canker- worms, cabbage butterflies, small moths, click beetles, rove beetles and other beetles, winged ants, and many other flying insects form part of its food. It usually leaves for the south in August or September, but sometimes stays much later where bayberries or sumac berries, upon which it feeds, are plentiful. Barn Swallow. Hirundo erythrogastra. Length. — Six to seven inches, or a little more. Adult.— Above, very dark blue; tail deeply forked, showing white markings when spread; forehead, throat, and upper breast chestnut; lower breast and belly buff. Nest. — Built of mud, straw, and feathers; usually plastered to a rafter in a barn or shed. Eggs.— White, covered with brown spots. Season. — April to September. The note of the Barn Swallow brings to mind visions of fields of waving grass, wide barns, and well-filled mows, for this Swallow follows the cattle. It is a bird of the pastoral country, the farm, and the hayfield. Originally it nested in caves or on rocky cliffs. The rude barns of the early settlers offered it abundant safe nesting places, while the clearing of the land and the increase of cattle augmented the numbers of its insect prey. Swallows must have multiplied wonderfully with the settlement of the country, but they have rather decreased of late years. The twitter of this Swallow is musical; its flight is the poetry and grace of motion; its plumage is attractive to the eye; and its life is largely spent in destroying the insect foes of the farmer and his cattle. It is particularly servicea- ble about grass fields. The moths of the smaller cutworms, those of Arctians and Crambids, are among the injurious in- sects that it gleans when flying low over the grass. Every 346 USEFUL BIRDS. one who walks among the tall grass in the fields may notice how Swallows capture the moths that fly up about the foot passenger. Prof. C. H. Fernald states that while he and his friends were walking through the grass at his home at Mt. Desert several Swallows invariably attended them and fed on different species of Crambus in abundance. These observations were continued during several years. Codling moths, cankerworm moths, and Tortricid or leaf- rolling moths are gathered from the orchard by the Swallows. Horseflies, house flies, mosquitoes, gnats, and crane flies are commonly caught. The only apparently harmful habit that I have observed is that of picking up parasitic insects in flight over fields infested with army worms or cutworms. Cliff Swallow. Eaves Swallow. Petrochelidon lunifrons lunifrons. Length. — About six inches. Adult.— Dark bluish above; forehead cream white and rump light chestnut; throat chestnut; other under parts whitish; tail ends squarely. Nest. — Built mainly of mud, under the eaves of barns or out-buildings. Eggs.— White, spotted with reddish-brown. Season. — April to August. When the first explorers reached the Yellowstone and other western rivers, Swallows were found breeding on the precipitous banks. As settlers gradually worked their way westward the Swallows found nesting places under the eaves of their rough buildings. In these new breeding places they were better protected from the elements and their enemies than on their native cliffs, and so the Cliff Swallow became the “Eaves Swallow,” and, following the settlements, rapidly increased in numbers and worked eastward. Audubon saw them first on the Ohio in 1815. They were seen near Lake Champlain in 1817, at the White Mountains of New Hamp- shire in 1818, at Cincinnati in 1819, and in 1830 they had reached Winthrop and Gardiner, Me. They increased and spread rapidly over the eastern States, and probably reached their maximum in numbers from 1840 to 1860. They were 1 Professor Fernald states that the Crambids feed at the roots of grasses, and that they undoubtedly destroy a large amount of grass without being discovered. Professor Webster wrote him that in Ohio hundreds of acres of grass had been destroyed by these moths. BIRDS OF THE AIR. 347 very numerous in Massachusetts up to about 1865, but since the introduction of the Sparrow their numbers have been slowly decreasing here, and now there are large areas where they do not breed. Apparently they are now more plentiful than ever in some parts of Maine, and possibly some of the Massachusetts birds may have migrated there. Their ordinary note is a rather harsh chirp. Their food is very similar to that of the Barn Swallow, as they frequent similar situations. Wherever a colony of these birds is located they must have a considerable effect on insect life. They fly much over bogs and meadows, and with the Barn Swallows are useful in destroying the pests of the grass lands and cranberry bogs. Purple Martin. Black Martin. Progne subis subis. Length. — About eight inches. Adult Male. — Deep, lustrous steel-blue ; wings and tail dark brown; tail slightly forked. Adult Female. — Brown above, glossed on head and back with blue or purplish ; forehead and throat mottled with gray; breast brownish; belly whitish. Nest. — In a hollow tree or bird house. Eggs. — White. Season. — April to August. Many years ago Dr. Brewer wrote Audubon that an un- usually cold season had destroyed all the Purple Martins in the neighborhood of Boston. Since then other occurrences of this kind have been re- ported, but there was no per- manent widespread diminution in their numbers until the “English” Sparrows became numerous. Then the Martins were gradually driven away, until they bred only loeally, Fig. 149.— Purple Martin, male, about Sars y 7 one-half natural size. and had disappeared from a large part of the State. The June storms of 1903-04 nearly completed their extirpation from the State as breed- ers, and except in a few favored localities their boxes are now (1906) all taken by the Sparrows. The Martin is a southern bird, and cannot long withstand 348 USEFUL BIRDS. cold storms in the breeding season. It is also one of the most purely insectivorous of all birds, and feeds almost en- tirely on winged insects. Therefore, when the air is cleared of flying insects by long, cold rains or hard frosts, it must starve. Its note is a full-toned chirruping carol, musical and clear, beginning peuo-peuo- peuo. It feeds largely on some of the greatest pests of the farm. Rose beetles and May beetles are caught in large numbers. John 8. Russell writes that a quart of the wing cases and other rejecta of that common pest, the striped cucumber Fig. 150.—Purple Martin female. beetle, were taken from a hole in a Martin box; and Dr. Packard makes a similar statement. House flies and flies that trouble horses and cattle are taken in considerable numbers from the sides of houses and barns. Mr. Otto Widmann states, in “Forest and Stream,” that thirty-two parent Martins made three thousand, two hun- dred and seventy-seven visits to their young in one day, —June 27, 1884. Every effort should be made to induce these birds to again take up their abode throughout the State. BIRDS OF MARSH AND WATERSIDE. 349 CHAPTER X. BIRDS OF MARSH AND WATERSIDE. The birds of wet, waste lands, fresh-water meadows, marshes, swamps, and the shores of ponds and rivers seem at first sight to be of no importance from an economic point of view. Still, most of the Marsh Wrens, Spar- rows, Herons, and water-fowl that live in Fig. 151.—Salt-marsh caterpillar. This species -such localities is eaten by marsh birds. undoubtedly help to prevent uprisings of such field pests as the army worms, the green grasshoppers, and the salt- marsh caterpillars, that sometimes multiply so in lowlands as to overrun and devastate the upland crops. The Herons are of some further service to man, for, besides eating insects, they help to prevent the undue increase of meadow mice, rep- tiles, and frogs. Space will not permit detailed descriptions of the marsh birds and water birds, but a brief mention may be made of some of the most important species. PERCHING BIRDS. Song Sparrows, Savanna Sparrows, Blackbirds, Grackles, and Bobolinks, all of which spend more or less time in wet meadows and marshes, have already been described. Swifts and Swallows hawk over meadows, marshes, streams, and ponds, but the Swamp Song Sparrow or Swamp Sparrow | (Melospiza georgiana) is rarely seen far away from at its favorite marshes or swamps. It is a dark spe- Fig. 152.— Army cies, with a chestnut cap, a whitish throat, and a Satins 350 USEFUL BIRDS. breast unstreaked ; and it sings all summer long about the bushy margins of grassy swamps and marshes and in the reeds or bush clumps of river meadows. Its song slightly resembles that of the Chipping Sparrow, but is more varied and pretentious. Its sharp chind and busy chirping as it fusses about its lowly nest greet the ears of the canoeist as he floats down the placid stream. Another bird whose song is commonly heard along the shores of marshy rivers is the Long- billed Marsh Wren ( Telmatodytes Fig. 153.—Swamp Sparrow, about palustris palustris), found near two-thirds natural size. streams along the coast, and up the river valleys of eastern Massachusetts; but it is not so common in tbe central or western counties except along the Connecticut River. It sings among the reeds, cat- tails, and marsh grasses, a voluble, joyous, typical Wren song, which is kept up all day and may often be heard at night. It is an unmistakable Wren, with cocked tail and rapid, nervous motions. The Short-billed Marsh Wren ( Cistothorus stellaris) is one of the smallest of birds. It is not as common as the other species, and frequents sedgy meadows and wet lands along brooks. Its song more nearly resembles that of a Sparrow than that of the typical Wren. Marsh Wrens build the little globular nests, each with an opening in the side, that are found among the cat-tails or the meadow grass. RAILS. Rails are confined to the shores of ponds and rivers or to marshes and wet meadows, where they skulk amid the rushes, cat-tails, grasses, and water plants, and are more often heard than seen. The old saying, “As thin as a rail,” might have originally been applied to these birds, for their bodies are so thin that they readily slip between the stems of the grasses. Although no longer as plentiful as in the past, they still breed here, and many pass through the State in migration. The two common species are the Virginia Rail (Jta//lus virgintanus) and the Carolina or Sora Rail (Porzana caro- BIRDS OF MARSH AND WATERSIDE. 301 lina). The Sora is a dark, handsome bird, nearly as large as a Quail. It has the forehead, chin, and throat black, an ashy breast, and a short, yellow bill. The Virginia Rail is about an inch longer, having a long, curved bill and a light- colored throat. Many strange notes that are heard on the marsh at morning or evening or during the night may be attributed to Rails. Both species nest close to the ground in marsh or meadow. ‘Thin as the Rails are ordinarily, they become very fat in autumn, when they are shot in great numbers for food. HERONS. Every pond or stream with shallow waters has its resident or visiting Herons, and as all species of Herons are now protected by law, it is hoped that the decrease of the larger species may be arrested. Near the seashore and the larger bodies of water a bird is sometimes seen to rise from the marsh, uttering as it flies a loud, explosive quock. It is larger than a Crow, has a blackish back and crown, a short tail, light under parts, and grayish wings. It folds its long neck, tucks its long legs up behind, and flies off slowly, its wing tips bending well downward at every stroke. This is the Black-crowned Night Heron (Wycticorax nycticorax neevius), which flies chiefly at evening, but may often be seen abroad in the day- time, particularly on cloudy days. Young birds are brown above, streaked and dotted with white, but all have the same note. They usually nest in communities on trees in swamps. There is hardly a shallow pond or large stream in the State, remote from cities, from which one may not flush a smaller, dark-green bird, with dark, bluish wings, which rises either silently or with a sharp peok, takes a reef in its neck, stows its legs, and flies away steadily, keeping at about the same level. The downward bend to its wing tips as it flies seems to be even more pronounced than in the Night Heron. This is the Green Heron (utorides vires- cens virescens). It has several startling notes, and an ex- plosive, weird wowoogh, given as if in a stage whisper, that is sometimes uttered when it is perched ona tree. This species nests in trees, often singly, but sometimes in companies. 4 USEFUL BIRDS. In early spring, or in August or September, a tall, dark, lone bird may be seen stalking by some pond, along the sea- shore, or on tidal flats. It is far larger than other common Herons, and when it flies sometimes gives utterance to harsh, loud croaks, and spreads a pair of great wings that seem as large as those of the Eagle. This unmistakable bird is the Great Blue Heron or Blue “Crane” (as it is sometimes wrongly called) (Ardea herodias herodias), which lives largely on fish, frogs, and meadow mice. Another species is sometimes started from the grassy meadow or the marshy fen. This is a large brown bird, about the size of the Night Heron. The under part of its neck is distinctly streaked with brown and white, and there is a black streak on the side of the neck. It is a skulker, seeking concealment by preference, and flying only when hard pressed. Its flight is slow and awkward, and it usually does not fly high or far, but alights again among the grass or reeds of the marsh. Sometimes on rising it utters sev- eral harsh, rattling croaks. This is the American Bittern (Botaurus lentiginosus),—a bird that lives in the bog and nests there. It seldom, if ever, alights in trees. Its most common spring note consists of a series of choking, gurgling sounds, that resemble the noise made by an old-fashioned wooden pump, and may be represented by the syllables unk- a-chunk, repeated several times. This has given the bird the vernacular name of “plum pud’n.” Sometimes at a distance only a single note can be heard, which sounds like the stroke of a mallet on a stake. Hence the name Stake Driver; but how it came by the name of Indian Hen I am unable to say. The Bittern is perhaps the most useful of all the Herons, for it frequently goes to low fields and pastures, where it industriously hunts grasshoppers and other Orthop- tera. A small species, the Least Bittern (Jxvobrychus exilis), may be heard cooing in the marshes, but is seldom seen. The top of the head, back, and tail are black; else- where the bird is mainly brown, lighter below. It often sits erect, facing the observer, its bill pointing upward, and so it is unnoticed among the reeds or flags. Its habits are little known. BIRDS OF MARSH AND WATERSIDE. 353 WATER-FOWL. We have no means of knowing how many species of water-fowl once bred about the ponds and rivers of the State, but there are now but two important species that breed here in any numbers, and one of these, the Wood Duck (Azz sponsa) (see frontispiece), is now rapidly grow- ing rare in most of the State. This bird, of exquisite loveli- ness, was once the most common wild-fowl that nested along the shores of our wooded streams and ponds. It is now protected by statute at all times; but only the most rigid enforcement of the law can save this, the most beautiful of American wild ducks, from extermination. It is not as shy as the Black Duck, and it frequents small ponds and wooded streams that afford cover to the gunner and can be easily shot across. The young are hatched in a nest in some hollow tree or stump, and are often carried to the water by the mother bird. They are fortunate if they are not all killed by some gunner as soon as they are big enough for the table. The bird is harmless, and is at times a great insect eater. It should be saved from the fate of the Passenger Pigeon, Heath Hen, and Wild Turkey. The Black Duck (Anas rubripes tristis) has of late somewhat increased in numbers, owing, probably, to im- proved and better-enforced laws for its protection. It is not, as its name implies, a black bird, but is dusky, with a lighter neck and throat. The under sides of its wings are also lighter in color. It breeds on the ground, mainly in marshes and bogs, or on islands in ponds, and is well dis- tributed in suitable localities throughout the State. It is normally very destructive to grasshoppers, but in this State it seldom ventures far from its fastnesses in the bog, except as it goes to the sea or large bodies of water, which give it a good outlook and some chance of safety. The other pond and river Ducks and the Geese are mere migrants through Massachusetts. The sea Ducks are not known to be of much value to man except through the recreation their pursuit affords. The service rendered to man by sea birds is referred to on p. 80. 304 USEFUL BIRDS. CHAPTER XI. CHECKS UPON THE INCREASE OF USEFUL BIRDS. He who has any doubt about the former abundance of the larger birds in Massachusetts should read the accounts pub- lished by some of the earlier voyagers and settlers regarding the great numbers of water birds, shore birds, game birds, Hawks and Eagles, Great Auks, Cranes, Herons, wild Swans, Canada Geese, Snow Geese, Brant Geese, and Turkeys, that were found in the early years of the colony. We read of a thousand wild Turkeys reported as seen in a day, of forty Partridges seen in one tree and sixty Quail in another, of forty or fifty Ducks killed at a shot, of twelve score shore birds killed at two discharges of a fowling piece, of flocks of Passenger Pigeons that obscured the sky to the horizon in all directions, and of nesting places where for miles the trees were loaded with Pigeons’ nests. It is now well known that the Great Auk and the Labrador Duck have become extinct; that wild Turkeys, Swans, Pas- senger Pigeons, Cranes, and Snow Geese have practically disappeared from the State; and that the shore birds, game birds, and fresh-water Ducks have decreased tremendously in numbers. No records regarding the increase or decrease of the smaller birds have been made until within recent years, and we know only in a general way that certain spe- cies, like Swallows, Sparrows, and Robins, increased with and after the clearing and settling of the country, and that within the last half century there has been a considerable local decrease of these and other native birds, particularly about the centers of population.! Also, it is evident that small birds are not nearly as plentiful here as they are in 1 Director William T. Hornaday of the New York Zodlogical Park estimated, from reports received by him, that birds had decreased twenty-seven per cent. in Massachusetts during the fifteen years previous to 1898. The result of my own inquiries regarding the decrease of birds in Massachusetts was embodied in a report of one hundred and three pages made to the State Board of Agriculture in CHECKS UPON INCREASE OF USEFUL BIRDS. 3959 some States farther west, and that they are not numerous enough to fully control the insects on which they feed. It is certainly desirable, then, to take measures to increase the number of useful birds, and any inexpensive means of accomplishing this end is worthy the most careful consider- ation of thoughtful people. When one is asked what controls the numbers of birds, he finds himself at a loss for a ready answer. There are many well-understood checks upon their increase; others are more obscure. We can understand, for example, why the larger game birds and shore birds have decreased in numbers; but it is difficult to see why the Dickcissel or Black-throated Bunting has disappeared from the Atlantic seaboard and is now seldom found east of the Alleghanies, why the Red-headed Woodpecker has so nearly disappeared from Massachusetts, or why certain resident species as well as certain migratory species are common one season and uncommon the next. To effectually protect birds we must first understand the chief causes of mortality among them. Comparatively few wild birds die from disease or old age. Most of them per- ish from lack of food, the severity of the elements, or the at- tacks of their enemies. The destruction of birds by storms, great and widespread as it is, probably never occurs over regions extensive enough to utterly exterminate any species. Their destruction by starvation and cold is usually coextensive only with the area of severest storm. Under normal condi- tions the decimated species usually repopulate the country in afew years. Many young birds are killed by storms in the nesting season. Many migrating birds are blown into the sea and drowned. Fortunately for the birds, they are ordi- narily enabled by migration to avoid the severity of winter ; but they are unable in this way to escape the destructive agencies set at work by man along their lines of migration. In annual, perennial, widespread, and complete bird destruc- tion, man takes the lead among all other forces of nature. 1905; and as copies of this report—The Decrease of Certain Birds and its Causes; with Suggestions for Bird Protection — may be obtained of the secretary of the Board at the State House, its conclusions will not be reiterated here. 356 USEFUL BIRDS. THE DESTRUCTION OF BIRDS BY MAN. Man is responsible for the extinction of species or for their disappearance from great tracts of country. He cuts down the forest and drives out the larger wood birds. He destroys the birds that injure his crops or flocks. He intro- duces animals which destroy birds, and he shoots birds for food, money, or sport. It is only since civilized man reached this country that the Great Auk has become extinct, and that the Passenger Pigeon, which roamed in countless millions over a continent, has been swept away. It is since then that the Prairie Chicken, once found in the east, and so plentiful in Kentucky that it was considered fit food for slaves and swine only, has been pushed toward the far west. The wild Turkey has been nearly driven out of the Atlantic States by man. The White Egret and the Carolina Parrot have almost disappeared. The Bartramian Sandpiper or Upland Plover, the Wood Duck, and the Woodcock must follow if not fully protected. Man exterminates birds for money, little recking that he is killing the “goose that lays the golden egg.” The greatest enemies of game birds, and, therefore, the greatest factors in their extermination, are the epicures, — the people who buy birds to eat. The marketmen merely supply the existing demand. The call for game birds has been so insistent and the price paid for them so remunerative that marketmen have often organized to defeat legislation for the protection of game. Observing people who have fre- quented the markets have read from the butcher’s stall the story of the decrease of game birds. Within thirty years, tons of Passenger Pigeons have stood in barrels in the Bos- ton market, and men now living can remember when the east- ern markets were glutted with Quail and Prairie Chickens. The war of extermination waged on game birds is a blot on the history of American civilization. It is paralleled only by the destruction of birds for millinery purposes, which has some shockingly cruel aspects. Here again the dealers — the milliners — are not so much to blame as the public, for the former cater to the wants of women only as fashion dictates. In civilization we still CHECKS UPON INCREASE OF USEFUL BIRDS. 3957 cling to our rings, beads, and feathers, —the ornaments of the savage. Within thirty-five years the skins of Bluebirds, Scarlet Tanagers, and Baltimore Orioles have been in good demand in Massachusetts for hat ornaments. The brutal savagery which is characteristic of this phase of bird destruc- tion has been well illustrated in the extermination of the Egrets of the United States. Twenty-five years ago these beautiful birds were abundant in some southern States ; stragglers occasionally came north as far as New England. They are shy birds during most of the year, feeding chiefly in deep swamps and along lonely water courses. In the breeding season they gather into heronries, commonly called “rookeries,” where they build their nests. Then much of their shyness disappears under the stress of providing for and protecting their young. Unfortunately for them, their nuptial plumes are perfect in the breeding season. Fashion demanded the plumes. Nesting time was the plume hunter’s opportunity. There was little difficulty, then, in securing the birds by shooting them when they were sitting on the nests or hovering over their helpless young. So the old birds were shot, the plumes stripped from their backs, and the young left to starve in the nests or become the prey of Hawks, Crows, or Vultures. When I was in Florida, in 1878, great flights of these birds were seen along the lakes and rivers of the southern counties. One heronry was estimated to con- tain three million birds. Ten years later they were rare everywhere, and now they are practically extirpated. They have been pursued along the coasts of Mexico and into Central and South America. The search is extending into all countries where they may be found. Half-savage Indians and negroes are enlisted in the slaughter, supplied with guns and ammunition, and sent wherever they can find the birds. The misery and suffering entailed can be imagined. Thus are the “stub” plumes, “aigrettes,” and “ospreys” procured. They are not manufactured, and, whatever their color when sold, they were originally stripped from the back, head, or neck of some white Heron or Egret. The absolute extinc- tion of these plume-bearing species is assured unless women will stop wearing the plumes. A similar slaughter took place 395 USEFUL BIRDS. among the sea birds along the Atlantic coasts. ‘The birds were shot down on their breeding grounds and their wings cut off. Many human lives have been lost by reason of this nefarious business. In 1905 a warden employed by the National Association of Audubon Societies to protect the birds was murdered by plume hunters. The reader may be spared further details of this barbarous trade. The number of birds killed in the United States each year before the business was checked by law and public sentiment cannot be even estimated, but some figures can be given. A single local taxidermist handled thirty thousand bird skins in one year. A collector brought back eleven thousand skins from a three months’ trip. About seventy thousand bird skins were sent to New York from a small district on Long Island in about four months. American bird skins were shipped to London and Paris. We may judge of the demand there for birds from the fact that from one auction room in London there were sold in three months over four hundred thousand bird skins from America and over three hundred and fifty thousand from India. One New York firm had a contract to supply forty thousand skins to a Paris firm. In Massachusetts this trade bore most heavily upon the Gulls and Terns, which were driven out from many breeding places along the coast. From 1870 to 1890 this business was at its height in this country; and, as the market in Europe is still brisk, no doubt some birds are still killed here for millinery purposes, and some are still worn here, despite the laws which prohibit any one from killing native birds or selling or wearing their feathers. The danger to birds multiplies with the increase of popu- lation. Gunners and sportsmen shoot birds mainly to sup- ply the markets or for recreation; but many persons shoot birds, large or small, merely for sport or practice. There is a class of foreigners who shoot small birds for sport, and eat them. These people go out in squads, and each man shoots at every bird within range, whether sitting or flying. The Italians are tremendously destructive to bird life. In southern Europe the larger birds are now so scarce PLATE XXXIII.— Nest Robbers. A cause of the decrease of birds in many localities. (Photograph by A. C. Dike.) CHECKS UPON INCREASE OF USEFUL BIRDS. 359 that the people have taken to killing the smaller species, and the killing of small birds is regarded as sport. An Italian sportsman will secure a small live Owl, fasten it on a pole to attract the birds, take his station near by, and shoot every small bird that appears ; poachers stretch great nets in places where birds come to feed or drink; and thus the small birds that are | reared under protection Q oe ss > meget Att pat tS Nm 8 BEB THE. PROTECTION OF BIRDS. 379 there are no cats, any shed near the house, and opening toward the south, will be a good feeding place for birds. They will go there to feed when snow lies deep on the ground. At other times they will feed mostly in weed thickets, fields, and gardens. There are so many kinds of seeds that are relished by birds that there will be no difficulty in furnishing them a liberal supply of food when they need it. The farmer will find on his barn floors chaff mixed with enough seed to feed a large flock of birds through the entire winter. This should be gathered from the leavings of the latest cut first crop of hay, for there will be less matured seed of any kind in the early cut hay. Those who wish to provide more attractive food have their choice of the various seeds sold at the bird stores. Farmers often grow sunflowers for the fowls. These will attract Goldfinches ; sunflower heads or detached seeds make a good winter food for birds. It isa good plan to give one or more of the children a small patch of land near the house, on which to raise Japanese millet. If sown broad- cast on rich, moist soil, it will grow from five to seven feet in height, and the large seed heads will supply an immense quantity of seed. It takes but three or four square rods of land to produce all the seed one will need for birds, for a bushel or two ought to suffice for an ordinary winter. Winter is the time, if ever, to feed the Jays and Crows. If they do not molest the smaller birds they can do little harm, and they may do much good. Hang up a choice bit of carrion in the orchard or in the edge of the woods. It should be seven or eight feet from the ground, so as to be out of the reach of dogs or foxes. The skinned carcass of a fox or a cat will do very well. It should be so placed that the Crows can find no convenient roost within easy reach of it. It will then last the longer, and keep more of them from starvation. When the snow is deep they can resort to it one or two at a time, and when patches of ground become bare they will hunt meadow mice and dormant insects in the fields and thickets. By feeding them you may prevent their eating all the bayberries and other berries on which some of the smaller birds depend for food. Jays are also of great 380 USEFUL BIRDS. benefit to the orchard, by eating the eggs of the tent cater- pillar moth. Woodpeckers, Nuthatches, and Chickadees are all attracted by animal food. Juncos and Tree Sparrows acquire a taste for it during deep snows, when their usual food is buried. Unsalted bones, with meat, fat, or marrow attached, beef or Fig. 159.— Downy Woodpecker feeding on suet at the author’s window. (From Bird- Lore.) mutton tallow, fat, or suet may all be used for this purpose. Beef bones from the market, hung upon or wired to the or- chard trees, will furnish food for these birds. Some bones should be split, to expose the contents. Fat or suet will give the needed animal heat on which birds must rely during cold, stormy weather. Pork rind, even, may be used; but salt meat is believed to be bad food for birds, although some will eat it, and Crossbills appear to be very fond of it. Ifa bird can get food enough, it can withstand very cold weather ; but if it starves, it soon freezes. Bones or suet should be put ‘ me oe ‘ —— = ee 4 es # ' Was = . Ze we or PLATE XLI.— Chickadee seen through Window, at Author’s Home. PLATE XLII.— Chickadees on Pork Rind. (Photograph by A.C. Dike-) PLATE XLIII.— Ernest Harold Baynes taming a Chickadee. ? a - eo PLATE XLIV.— Chickadee feeding from the Hand. (Photograph by A. C. Dike.) THE PROTECTION OF BIRDS. 381 out in October or early in November. It is important to begin early, so that the birds may form a habit of coming to the food before winter comes on. It should be renewed occasionally until late in spring. This will keep birds about the orchard all win- ter, where they will spend most. of the time in hunting for the eges and other forms of insects. Food should be put up on or near those trees which are known to be infested by insects. Chickadees and Nuthatches are remarkably un- suspicious, and any one who cares to spend a little time in the effort may readily teach them to eat from the hand. Seyv- . eral other species Fig. 160.—The birds’ Christmas tree at the author’s farm- may be enticed to house. (From Bird-Lore.) our windows, where their habits and manners may be studied in comfort even in the most blustering winter weather. We accomplished this as follows: small shrubs or branches of trees were fastened upright on each window sill, extending over the entire window, and fastened at each side to the window frame, as shown in Fig. 159. To these branches pieces of meat were attached, about a foot apart. The suet 382 USEFUL BIRDS. should be wound on firmly with string or wrapped in wire netting, so that it cannot be carried off bodily. At first the birds would come only one at a time, but when they became accustomed to this method of feeding, four or five birds would feed together at a window. Chickadees usually came first, Nuthatches and Downy Woodpeckers next, and Blue Jays last. While these birds were being enticed to the windows, the Sparrows were fed with seeds and crumbs thrown out upon the snow. Next, a shelf or table four and one-half feet long and two feet wide was made of rough box boards. This was bound round with a narrow cleat and covered with burlap, to prevent seeds and crumbs from blowing off. ? some of the wild birds of field and woodland. In many lo- a iRicand 6's 2ft Board 1o%long by 6 high Fig. 162.— Design for a Sparrow-proof shelf. (From Bird-Lore.) 1 It is of the utmost importance to provide food and shelter for Quail in winter. An old box or barrel, a shelter of rails in a fence corner, or a ‘“‘ birds’ tepee”’ of bean poles, any one of which is kept supplied with a little grain, may carry through a severe winter Quail enough tostock a whole township by their increase. 384 USEFUL BIRDS. calities the swarming House Sparrows will come to the feast and drive the native birds away. A hinged shelf (Fig. 162) supported by a light spring, which has been designed by a contributor to Bird-Lore, is believed to be Sparrow-proof. This method of feeding gives an opportunity to see what foods are selected by wild birds when given their choice. It is interesting to note that the birds at our windows have not learned to eat bread except in the shape of fine crumbs. When birds learn that bread is good, they will eat it from the loaf. Many kinds of food may be utilized ; doughnuts, frozen milk, pork rind, nuts, and seeds all find favor with the birds. Jays prefer chestnuts and corn. Sand and coal cinders give birds the wherewithal to grind their food when snow covers the usual supply of material on the ground. Every family living in the country in winter needs the pleasure and community of interest to be had in thus cater- ing to the wants of the birds. Each farmhouse should have at least one window shelf for them. We should teach the children to feed them and watch for them. Thus we may benefit both child and bird, and gain pleasure and profit for ourselves. Attracting the Summer Birds. The term “summer birds” may be defined as including all summer residents, or those birds which remain through the summer to breed. In winter we have only to offer food to the birds to attract them; shelter and protection will retain them; but in summer birds must have food, water, protection, and a home. Food in quantities they always need, especially when engaged in rearing their young. Nature provides this in summer, but we may help them even then by putting out favorite foods. The supply of suet should be kept up until hot weather, and it is better to continue it all summer, for its presence may decide some of the resident birds to remain and nest near the house or in the orchard. The male Chickadee will take suet to feed to his sitting mate, and the parent birds will take it for a part of their own food while feeding their young mainly on insects. If we wish to attract useful birds to the garden, it is well THE PROTECTION OF BIRDS. 385 to begin to feed birds when they are migrating in April, by scattering a little cracked corn, oats, wheat, barley, or millet seed in the yard near the garden or along the garden paths. This may attract Sparrows, Thrashers, and Black- birds, some of which may decide to remain in the vicinity for the summer. These birds and the Robins and Catbirds will make themselves useful by feeding on insects at plowing time. Birds will drink and bathe even in winter, when they can find water; but in summer they must have water for both purposes. When the streams are frozen, snow takes the place of water; but in summer, if water is not at hand, birds must get it by drinking dew and by eating fruits or succulent green vegetation. Where there is running water about the house or garden, they may do very well without further provision for their needs; but it is best in any case to arrange a place where they can drink and bathe without being exposed to the attacks of cats and Hawks. A shallow pan set on the window shelf or on the top of a post on the shady side of the house, some four or five feet from the ground, will answer every purpose. A shelving stone may be put in, to give a varying depth of water in different parts of the pan. The water should not be more than two inches deep anywhere, and not more than half an inch deep on one side of the pan. If this is put out in the spring, and the birds become accustomed to visiting it, they will require less fruit than usual. The water should be changed every day. This pan will be a source of enjoyment to the household during the noontime, when all may watch the birds. bathe and splash the water about. Where there is running water a drinking fountain may easily be arranged. This may be placed on the lawn, slightly elevated, and supplied from a drip; such a fountain should need little attention. Orna- mental fountains and watering troughs are often so deep that there is no chance for birds to drink or bathe. There should always be shallow water somewhere. Most orna- mental ponds have no provision for birds. The water is too deep or the coping too high. In such cases a large stone with a surface shelving into and just beneath the water, or 386 USEFUL BIRDS. a shallow floating basin, provided with a wide wooden rim to keep it afloat, may be used. There are usually springs or brooks about the farm, where birds can drink or bathe; but too often the long grass or low bushes about these drinking places conceal the crafty cat, which lies in wait to catch birds when their feathers are wet from bathing. A fountain on the closely cropped lawn, like the one designed by Mr. Chapman, is admirable if cats can be kept from it. When the cherry trees are in blossom the Hummingbirds come. There should be a succession of “5 nectar-bearing flowers Fig. 168.— Mr. Chapman’s bird bath. (From in the garden, to at- esa tract them. The gla- diolus, honeysuckle, and bee balm are favorite flowers, but many others lure the Hummingbirds. Providing Nesting Places about Buildings. When the tide of bird life begins to turn northward in the spring, and before farm work becomes pressing, we should see that plenty of suitable nesting places are provided about our buildings for the birds, and that there is an abundant supply of nesting material with which they can construct their homes. Birds, like men, are largely controlled by circumstances. The presence or absence of a nesting place may decide a pair of birds for or against the acceptance of a certain locality as a place of residence. In the rough buildings of our grandfathers there were THE PROTECTION OF BIRDS. 387 always openings left for the birds to enter. The rafters were round or rough-hewn timbers, on which they could find points of attachment for their nests. Most barns now built are closely boarded and battened, clapboarded or shingled to the ground. No entrance hole is left for the birds. The timbers are sawn so smoothly that the birds, if they get in, can find no safe attachment for their nests. Even where the eaves project so as to give sufficient shelter for Swallows, the mud with which they build their nests will not stick to the planed and painted boards. Let every farmer having such a barn cut an ornamental opening at least a foot wide in each gable, leaving it open all summer, so that the Swallows may fly in; or, better still, cut an opening three or four feet long over the barn door, through which Swallows can go at will. Let him nail rough cleats horizontally on some of the rafters, or put up little bracket shelves thereon; and let each farmer having a barn with wide, projecting eaves put up a long shelf, cleat, or joist on the side of the barn within a foot of the eaves, for the Eaves Swallows; and we may in time have more Swal- lows than ever before, provided care is taken to shoot ma- rauding English Sparrows. If we had more Swallows and Pheebes we should have fewer flies, mosquitoes, and garden pests. The Chimney Swifts have been driven away by the con- struction of modern chimneys, and destroyed by unseason- able storms. They still nest in the large chimneys of the older houses. A box made of boards planed on the out- side may be built of the size and shape of an old-fashioned chimney, with similar divisions, and firmly fastened upon the roof of a building, to attract the Swifts. It is not nec- essary that it be high, or even that it be upon the top of a building ; but it should be out of reach of cats. Possibly a few thin, wooden cleats nailed horizontally inside will assist the birds. By means of a door in such a structure, and an arrangement of mirrors, the habits of these interesting birds may be studied. The Phebe prefers a roof over its head, such as is some- times furnished by the upturned roots of a large tree, a 388 USEFUL BIRDS. bridge, barn, shed, or unoccupied house. It will occupy almost any shed, barn, or barn cellar near a pond or stream, but its nest is sometimes broken down for lack of a proper support. A box like that in Fig. 164 will be acceptable to the Phoebe if nailed up to the plate or rafters of a low shed. If the shed is closed, an opening Xo AA ASS should always be left for the birds. : An open window, with a few bars across it to keep out cats and human intruders, is all that is necessary. Phoebes sometimes build on a shelf under projecting eaves. They par- ticularly like a rough stone build- ing. Robins will often build in rough boxes or trays, or on Fig. 164.— Pheebe’s nest in box. shelves put up under eaves or piazzas, in arbors or even in buildings. Having provided nesting places for all the birds that may be induced to nest within our buildings, we may next turn our attention to making nesting boxes. Bird Houses and Nesting Boxes. Since the use of the axe and saw in woodland and orchard has deprived many birds of their natural nesting places in hollow trees or limbs, there is no better way of providing for an increase of the numbers of such birds than by furnishing them with artificial building sites. Bluebirds found drowned in cisterns, Owls, Flickers, and Wood Ducks found dead in the stove pipes of unoccupied buildings, all show the straits to which birds are now driven in the search for a nesting site. All apertures that lead to such death-traps should be closed, and a plentiful supply of artificial breeding places should be provided. What more interesting occupation can there be for the children on the farm than that of preparing nesting boxes for the birds? This is the surest way of increasing the summer bird population, for birds do not lack food in sum- mer so much as safe nesting places in which to rear their young. Unfortunately, however, a great obstacle to success with THE PROTECTION OF BIRDS. 389 native birds is found in all cities and most villages of the State. The introduced House or “ English” Sparrow comes first, and occupies the boxes. The Sparrow often will not nest in boxes that are suspended by a wire or rope. Bluebirds and Tree Swallows sometimes will occupy such hanging boxes; but the farmer need not use them, for he can keep his place clear of Sparrows by a vigor- ous use of the shotgun, and by putting up nesting boxes he may bring back the native birds. There are many localities where the Spar- row has never been very troublesome, and where native birds have contin- ued to breed practically unmolested. In such places we may put up fixed bird houses, with the confident ex- pectation that Tree Swallows or Bluebirds will nest in them, which is more than can be said of the swinging boxes. Nevertheless, where Spar- rows are very troublesome, the only Fig. 165.—Nesting box, hung bird box that is practical is one that ae is hung by wire, and even this cannot be depended upon to keep them out. Wrens are not generally common, and the Purple Martins were so decimated by the storms of June, 1903, that people who can establish Martin colonies will be fortunate indeed ; but the Flicker, the Chickadee, and the Screech Owl are among the possibilities, while we may by chance attract the White-breasted Nuthatch, Crested Flycatcher, or little Saw- whet Owl. Let no one neglect to put up bird houses because of the expense. No money need be expended. Birds are not very fastidious about their quarters. Old, weather-beaten lumber seems to be more attractive to them than that which is newly planed or painted, probably because it resembles in appear- ance the weathered stumps or limbs in which they naturally find their homes. Very acceptable nesting boxes may be 390 USEFUL BIRDS. made from a hollow limb sawed in sections, with tops and bottoms made of an old board, and a hole bored in each section for an entrance. Artistic imitations of hollow limbs may be made of papier- maché, but this involves some expense. The best imitations of a hollow log that I have seen were constructed of the bark and wood of a sound tree. In Bird-Lore for January— February, 1905, and in the Youth’s Companion of April 13, 1905, I described the method of making these boxes, but at that time they were untried. They have since had two seasons’ trial, with very satisfactory results. To Mr. William Brewster belongs the credit of their invention, and I have made a considerable number after his design. White birch and chestnut were used, as it was believed that the bark of these trees would be most durable, but Mr. Brewster now suggests that elm bark is probably best of all. Those por- tions of the trunks used were from four to eight inches in diameter. The boxes were made in summer, as the bark will not usually peel well before about June 20, and then only fora short time. When the tree had been cut down, the trunk was sawed into sections from ten to eighteen inches long, according to the size of the boxes desired. Only straight sections, free from knots or branches, were used. A branch of the right size, however, may, when cut off, leave a hole in the bark that can be utilized as an entrance for the birds. These domiciles may be made as follows: an incision is made on the side intended for the back of the box, through both outer and inner bark, from the top to the bottom of each section ; then, on the opposite side, some two or three inches from the top, bore through the bark, with an auger or ex- tension-bit, a hole of the size desired for the entrance. If such tools are not at hand, the aperture may be cut with a gouge, a chisel, or even a knife. Next insert a wedge-shaped stick into the incision at the back and under the inner bark, to start it off, and with this implement peel it very carefully. In peeling birch, be careful not to separate the inner and outer layers of the bark. Be particularly cautious when working about knots or rough places. The bark will make the sides of the box, and two sections, each an inch thick, a Maal yo hy > . YI rf yg albitle 0. X A AN OI IO RENT NNN i i PLATE XLVII.— Bird Houses and Nesting Boxes. Fig. 1, hollow limb nest- ing box; Fig. 2, birch bark bird house: Fig. 5, slab bird box; Fig. 4, cat-proof box; Fig.5,a use for an old funnel; Fig. 6, chestnut-bark nesting box; Figs. 7 and 9, boxes with slide fronts; Fig. 8, house for Tree Swallow. THE PROTECTION OF BIRDS. a91 sawed from the ends of the stick, will make the top and bot- tom. These must be reduced in size by a shave until the bark can be lapped fully half an inch at the incision on the back. Now tack the bark to the bottom and top. Such a box may be put up by nailing or screwing a short stick or pole over the lap on the back, which stick in turn may be nailed or screwed to the support. To make the roof watertight, a piece of thin, green bark from a young pine may be put on and tacked down over the edges. It will fit like soft leather, and make a neat appearance ; but experience has shown that it will not long resist the effect of sun and rain. A more per- manent covering may be made by using a piece of tin or zinc, as shown in the figure of the chestnut bark box (Plate XLVII, Fig. 6); or a roof may be made of birch bark, as shown in Plate XLVI, Fig. 2. To make the expected ai aa nest accessible to examination, the top of the _ bark nesting box, for Chickadees. bark sides might be fastened to a hoop, and the whole capped by a tin or wooden cover, like that of a lard pail or a berry box. The best support is a slim pole. Serviceable dwellings for birds may be made of the shells of gourds. Seedsmen advertise the seed, and any one can grow gourds. Squashes, even, may be utilized. The hard- shelled, old-fashioned winter crook-neck would make a stout castle for a Bluebird or a Martin. Four old shingles and two pieces of old board will make a box like that shown in Fig. 167. This may be nailed up in a tall tree near the house, or on a building. It must be out of reach of cats, or the young are likely to be clawed out of the hole by these stealthy marauders. To checkmate the cat, a much deeper box may be made, with a small, high- placed round hole for the entrance, and a sloping, overhang- ing roof, which helps to keep out both water and cats. (See Plate XLVII, Fig. 4.) There is another advantage in a box of this pattern. The young birds find it rather hard to get out of such a box at first. They have to make many attempts, and when they finally escape they are quite strong 392 USHFUL BIRDS. and less likely to be caught by cats, Crows, or snakes than they would be if reared in a box from which they could get out before they were fully fledged. For practical utility a nesting box should not only provide the birds with an acceptable nesting site, but it should also furnish them perfect protection from the elements and their larger enemies, and should be so made that the interior can be quickly examined and the contents removed, if necessary. The roof or cover should be hinged or made to take off, so that if any young bird fails to get out it may be liber- ated; while if undesirable tenants, such as mice, Sparrows, or squirrels, get in, they may be ousted. The box is much more satisfactory as a protective device if made so strong that neither Wood- peckers nor squirrels can easily enlarge the entrance sufficiently to allow ene- mies of the occupants to get in. All these essentials may be secured without expense by using worn-out or discarded utensils or receptacles. An empty tomato can may in a few Fig. 167.—Shingle box, minutes be made into a nesting box by ies ee slitting the tin of the opened end twice and turning down the piece between the slits, thereby mak- ing a hole not over an inch wide and high. It can be put up very quickly by placing the bottom of the can against a tree trunk and nailing it there with two wire nails driven diago- nally through the edge, or by fastening it to a piece of board or a pole, which can be attached to a tree or building. The cover may be kept in place by pinching the mouth of the can a little. The tomato can box is shown in Plate XLVIII. This is a practical box for Wrens, and it may be used by Bluebirds if the entrance is made larger. When holes are cut through tin, the sharp edges round the opening should be turned over with a pair of pliers, that the birds may not injure themselves in going in or out. Rusty PLATE XLVIII.— Inexpensive Nesting Boxes. Tomato can, Bluebird box, old teakettle, peach can, Owl box, and kerosene can. PLATE XLIX.— Chickadee about to enter its Nest, in an Old Varnish Can. THE PROTECTION OF BIRDS. 393 or painted tin is best, for birds seem suspicious of bright surfaces. There should be a few nail holes in the lower side, to allow the escape of any water that may drive in. A large funnel may be nailed to a piece of board, and the board fastened on the side of the barn; or the funnel itself may be fastened to the building. This may be used by a Wren or a Chickadee. (See Plate XLVI, Fig.5.) Anold coffee pot may be set upon a post, or fastened to a bracket which may be set against the side of a building. Milk cans, lard pails, flower pots, teaketties, and many other utensils may be utilized, and fastened up in various ways to trees or buildings ; and, although they may not be ornate, the birds will find them useful. There should be no projection or limb immediately beneath a nesting box, to give cat or Crow a foothold from which to reach into the nest ; but it is always better to have a small limb or stick, as a perch, within a few feet, to serve as a rest for the parent birds. Small wooden boxes, such as may be found at the stores, if not over six by eight by fifteen inches, may be used. Those who have time and lumber to spare may make bird houses of any shape to suit their tastes; but a few suggestions as to construction and situation will not be out of place. If one wishes to accommodate only a certain species of bird, the entrance to the nesting box should be made so small that no larger bird can enter. Boxes made on this principle for small birds will protect the eggs and young from Crows and Jays. A round hole one and one-fourth inches in di- ameter will do for either Wrens or Chickadees ; but a Wren can use a smaller opening, just the size of a silver twenty-five- cent piece, and such a doorway is small enough to keep out “English” Sparrows. The Chickadee can use a one and one- eighth inch hole, but some will not be content with one less than one and one-fourth inches in diameter. Bluebirds and Tree Swallows can pass through a one and one-half inch aper- ture. This is usually large enough, and will keep out Jays. The two-inch hole usually recommended is too large, for it will admit both Martins and squirrels. These entrances may be round, square, or oblong. If made oblong, the measure- ments given should be used horizontally, the vertical diame- 394 USEFUL BIRDS. ter being made a little larger. The Flicker will sometimes enter a knothole, only two and one-half inches in diameter, in an old apple tree; but if so small an opening is made in a box put up for this bird, it may not use it. Fora Flicker or a Screech Owl the entrance should be made at least three or three and one-half inches in diameter. In making boxes of the form illustrated as the cat-proof box (Plate XLVI, Fig. 4), the following inside dimensions are sufficient. Boxes for Wrens or Chickadees may be made twelve by four by five inches, with the entrance hole close to the top. They may be placed from six to twenty-five feet from the ground.! A perch is not necessary. Boxes for Flickers are best if made from hollow limbs or covered with bark. These birds do not need perches. If limbs with the bark on are used, they should be cut in late summer, autumn, or early winter, when the bark will adhere. A box for a Flicker may be eight by ten by fifteen inches, and should be placed from six to twenty-five feet up. A similar box twelve inches square and fifteen high would be ample for a family of Screech Owls.2 A box twelve by five by six inches Is ample for Swallows or Bluebirds, and should be placed from twelve to thirty feet from the ground. Swallows and Blue- birds like perches. The long diameter of the box should be from front to back. The sitting bird will then face the entrance, —a good position for defence. is (Photograph by — Avon Berlepsch Nest Box occupied by Flickers at Meriden, N. H. “™rmest Harold Baynes.) PLATE LIX APPENDIX. 429 riety with a superior fruit. My own experience leads me to believe that birds prefer most mulberries to cherries, and this belief has been confirmed by fruit growers in several States. If cherry growers would plant around their orchards a double row of early mulberries, and grow only the varieties of cherries which bear a firm, hard fruit, they might avoid the depredations of the birds, but the mulberry trees should be set when the cherries are planted or before, so that they may begin to fruit at least as early as the cherries. My own cherries were practically uninjured with a row of fruit- ing mulberries near by, and I have seen the cherries on several trees mature untouched within a few yards of a heavily fruited Charles Downing. It is a common complaint that plants and trees set out to attract birds are not hardy, do not thrive, or die. This is due, in many cases, to improper planting. The roots of a plant or tree should be kept moist from the time they leave the soil until they are again buried in it, and they should never be set in dry earth. If the soil is dry when the plant is to be set out, both soil and roots should be well moistened. See that every plant that is set out has a good supply of fibrous roots, and trim down the head of the tree or shrub almost to a whip. In digging up the young plant the fibrous roots usually are closely pruned; if the top is not pruned to cor- respond, the tree will be top-heavy and may die back. The customary way of setting out a plant, tree or vine is to dig a little hole in the sod or among the roots of standing trees and stick the plant in. Ninety-nine per cent. of the plants or trees set out in this manner do not make rapid growth, and if the hundredth one does well it is a fortunate accident. In order to secure the best results, ground in which plants or trees are to be set should be culti- vated and manured for at least two years before the trees are planted, but the least that should be done is to spade up the ground for some distance around each tree, shrub or vine, and dig a hole large enough to spread out the roots as far in all directions as they will go. The tree or plant should be set a trifle deeper in the soil than it formerly set, and good soil should be worked down among the roots and packed hard with the hands and feet, leaving no possible space among the roots unfilled with earth. If quick growth 1s required, a reasonable quantity of fertilizer, containing phosphoric acid, nitrogen and potash, such as wood ashes and ground bone mixed with well-rotted manure, may be scattered through and well mixed with the soil in the hole, and the surface may be APPENDIX. covered with a mulch of chip dirt or well-rotted leaf mould. Too much quickly available nitrogen should be avoided, as it makes a quick growth of wood which may be winter-killed. FRUIT FOR BIRDS AND ITS SEASONS. The following list of fruit-bearmg trees, shrubs, vines and her- baceous plants attractive to birds, showing the season when the fruit matures and when it is available for food, was compiled by Mr. Wilson H. Fay: — June, June, July, June, July, June, July, August, June, July, August, June, September, . July, July, July, July, July, : $ July, August, July, August, July, August, July, August, July, August, August, August, August, . : 5 August, September, August, September, August, September, August, September, August, September, August, September, Shad bush, Juneberry, Amelanchier canaden- sis (tree). Red-berried elder, Sambucus racemosa (shrub). Wild red raspberry, Rubus aculeatissimus (shrub). Blueberries, Vaccinium (shrub) (all species). Mulberries, Morus (tree) (all species). Shepherdia, Shepherdia canadensis (shrub). Wild strawberry, Fragaria virginiana (herba- ceous plant). Thimbleberry, Rubus occidentalis (shrub). Wild red cherry, Prunus pennsylvanica (tree). Swamp gooseberry, Ribes lacustre (shrub). Wild black currant, Ribes floridum (shrub). Wild sarsaparilla, Aralia nudicaulis (herba- ceous plant). False spikenard, Smilacina racemosa (herba- ceous plant). Sassafras, Sassafras variifolium (tree). Dangleberry, Gaylussacia frondosa (shrub). High-bush blackberry, Rubus allegheniensis (shrub). Black cherry, rum cherry, Prunus serotina (tree). Dwarf bilberry, Vaccinium cespitosum (shrub). Choke cherry, Prunus virginiana (tree). Dwarf cornel, Cornus canadensis (herba- ceous plant). Gray cornel, Cornus paniculata (shrub). Silky cornel, Cornus Amomum (shrub). Red-osier dogwood, Cornus stolonifera (shrub). Alternate-leaved cornel, Cornus alternifolia (shrub). Beach plum, Prunus maritima (shrub). PLATE LX.—A Modification of the von Berlepsch Food House, made by Ernest Harold Baynes, Meriden, N. H. August, September, August, September, August, September, August, September, August, September, winter, August, September, winter, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, September, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, winter, APPENDIX. 431 Common elder, Sambucus canadensis (tree). Dewberry, Rubus villosus (vine). Cowberry, foxberry, Vaccinium Vitis-Idwa (shrub). High blueberry, Vaccinium corymbosum (shrub). Bearberry, Arctostaphylos Uva-ursi (pros- trate vine). Flowering dogwood, Cornus florida (tree). White thorn, Crataegus coccinea (tree). Tupelo, sour gum, Nyssa sylvatica (tree). Waxwork, climbing bitter-sweet, Celastrus scandens (vine). Moonseed, Menispermum canadense (vine). Cranberry-tree, Viburnum Opulus (shrub). Arrow-wood, Viburnum acerifolium (shrub). Black haw, Viburnum prunifoliwm (shrub). Sheepberry, Vibwrnwm Lentago (shrub). Withe-rod, Viburnum cassinoides (shrub). Sweet gum, Liquidambar Styraciflua (tree). Hackberry, nettle-tree, Celtis occidentalis (tree). Spice bush, Benzoin ewstivale (shrub). Snowberry, Symphoricarpos — racemosus (shrub). Inkberry, [lex glabra (shrub). Black alder, Ilex verticillata (shrub). American holly, Jlex opaca (tree). American mountain ash, Pyrus americana (tree). European mountain ash, Pyrus Aucuwparia (tree). Red cedar or savin, Juniperus virginiana (tree). Common juniper, Juniperus communis (shrub). Poison ivy, Rhus Toxicodendron (shrubby vine). Checkerberry, Gaultheria procumbens (herba- ceous plant). Partridge berry, Mitchella repens (vine). Pokeweed, Phytolacca decandra (herbaceous plant). Wax myrtle, Myrica cerifera (shrub). Barberry, Berberis vulgaris (shrub). Common green brier, Smilax rotundifolia (vine). Bayberry, Myrica carolinensis (shrub). Privet or prim, Ligustrum vulgare (shrub). Virginia creeper, Psedera quinquefolia (vine). 432 APPENDIX. September, winter, : . Common nightshade, Solanwm nigrum (vine). September, winter, : . American hornbeam, Carpinus caroliniana (tree). September, winter, 3 . Cockspur thorn, Crategus Crus-galli (tree). September, winter, ; . Small cranberry, Vaccinium Ozxycoccos (vine). September, winter, f . American cranberry, Vaccinium macrocar pon (vine). September, winter, : . Wild rose, Rosa humilis (shrub). September, October, . . Northern fox grape, Vitis labrusca (vine). September, October, . . Frost grape, Vitis vulpina (vine). September, October, winter, Staghorn sumach, Rhus typhina (shrub). September, October, winter, Dwarf sumach, Rhus copallina (shrub). September, October, winter, Smooth sumach, Rhus glabra (shrub). September, October, winter, Poison sumach, Rhus Vernix (shrub). November, . A : . Frost grape, chicken grape, Vitis cordifolia (vine). THE MULTIPLICATION OF THE COLORADO POTATO BEETLE. The statement on page 29, written by me in 1905, to the effect that the progeny of one pair of Colorado potato beetles, if allowed to increase without check, might in one season amount to over sixty millions, needs some explanation in view of the results of more recent investigations. The above assertion, taken from the report of Townend Glover, official entomologist of the United States Department of Agriculture, was published in the annual report of the Department of Agriculture in 1871.' Glover refers to the Canadian Entomologist, but the statement probably was based upon the investigations of Prof. C. V. Riley, who was among the first to study the life history of the Colorado potato beetle. He was one of the most eminent entomologists of his time, and during his later years was chief entomologist of the United States Department of Agriculture. While State entomologist of Missouri he published a series of annual reports which were considered models of their kind. In the report for the year 1868? he stated that in the latitude of St. Louis the potato beetle had three broods during the year. Each female, he said, was capable of depositing upwards of a thousand eggs. If we assume, then, that each female deposits a thousand eggs, and that three broods are produced in a year, we have one billion individuals as the annual progeny of a single female. This is tremendously in excess of the number given by Glover. Therefore, if Riley is correct, Glover’s statement is 1 Report of the Commissioner of Agriculture, 1871, p. 74. 2 Agricultural Report of M:ssouri, 1868, First Annual Report on the Noxious, Beneficial and Other Insects of the State of Missouri, p. 107. APPENDIX. 433 well within the mark, but many investigators have stated that the potato beetle is single brooded in the northern part of its range. Dr. Otto Lugger, in the report of the Minnesota Agricultural Experiment Station, issued by the University of Minnesota in 1895, states that the usual number of eggs laid by each female is about six hundred. Assuming that he is correct in stating that the potato beetle in Minnesota is three brooded, the number pro- duced by one female a year under the conditions noted above possibly might reach one hundred and forty-six million.! A. 'T. Weed, entomologist of the Mississippi Agricultural Ex- periment Station, stated in 1897 that the potato beetle deposited an average of about five hundred eggs, but sometimes one thousand. It seems probable that the number of eggs laid by each female was greater during the advance of the insects across the country from the west than it now is.’ Later investigations have led others to doubt whether the in- sect ever produces three full broods in a season. Dr. J. B. Smith claims two generations and sometimes a partial third in New Jersey. Chittenden (1907) states that two is the normal number of generations, and that Tower has observed that this number is a remarkably constant generic character. The latest statement by an entomologist that has come under my observation, regarding the number of eggs laid by the Colorado potato beetle, is that of Dr. E. Dwight Sanderson, dean of the College of Agriculture of West Virginia University and director of the West Virginia Agricultural Experiment Station. His state- ment is to the effect that each female lays an average of about five hundred eggs during the course of a month, that throughout the territory where the beetles are most injurious there are two gen- erations a year, that further south there is evidence of a partial, if not complete, third generation, and that in the northern part there is but one generation a year.* Assuming that Sanderson is correct, and the average number of eggs laid by each female is five hundred, the progeny would num- ber five hundred for the year where the insect is single brooded; where there are two broods the number would be two hundred and fifty thousand; with two and one-half broods the number would be sixty-two million, five hundred thousand, which is close to 1 Report of Minnesota Agricultural Experiment Station, Bulletin No. 43, December, 1895, p. 158. 2 Report of Mississippi Agricultural Experiment Station, Bulletin No. 41, March, 1897, p. 188. 3 Insect Pests of Farm and Garden, by E. Dwight Sanderson, 1912, p. 293. 434 APPENDIX. Glover’s statement; and if three broods were raised the number would be six hundred and twenty-five million. Under the circum- stances it seems probable that the estimate by Glover is not an exaggeration if three broods or even two and one-half broods are raised, but such a statement would not apply to the northern part of the range. INDEX. [Heavy-faced type indicates the principal reference to a species. In most instances a brief description of the bird referred to may be found on the page thus indicated. Headlines of chapters and divisions are not indexed, but are included in the table of contents.] PAGE Accipiter cooper, ; ; : : . : ; : ; » 366 velox, 3 : : ; ; : é 5 ; : 5 Biols) Actitis macularia, : 5 : : 3 : ; ; 4 _ Sas Agelaius phoeniceus phceniceus, . ‘ ; ; ‘ ; 2 . 319 Aix sponsa, ; c ; j ; : : Z F : 2 3008 Akerman, Alfred, 5 : ; : : A : ; 3 . 416 Alabama argillacea, . : ; 4 , , ; ; ; eS. Allen, J. A., : : Z : ; ; 5 : : 3 a 302 Altum, Bernhard, 7 : ; : _ é , A A 64 Aluco pratincola, 3 2 : : F : : ‘ : . 368 Ammodramus savannarum australis, . : é ; ; ; . 308 Anabrus simplex, : : F 2 : ; : : 5 (ale Anas rubripes tristis, . , : ; : : ; : : » So8 Anthonomous grandis, : ; : : : z : ; . 34 Antrostomus vociferus vociferus, ; : : ; ; : . 342 Aphis, larch, eggs of, . ; : : : ‘ : : ‘ ae hop vine, . : ; ; ; ; ; : : E 29 woolly apple, : : : 3 : ; : , . 203, 252 Aphodius inquinatus, ‘ ; : ‘ s ; : : Be w(oal Archilochus colubris, . : ‘ ; ; ; j ; P . 240 Ardea herodias herodias,_ . : : : A ; F ; 5 Army worm, : : é ; 7 . 36, 218, 295, 316, 323, 330, 349 Asio flammeus, . : ; ; K - c ‘i . : 78, 367 wilsonianus, % : : 3 2 ‘ , ; ; . 368 Astragalinus tristis tristis, . : ; ; ; : 5 : 5 222: Astur atricapillus atricapillus, 5 ‘ é ; : : : 5 tate Attracting birds, European methods of, : : ; : . 425-428 Audubon, John J., F : : : % : . A, 194, 263, 346, 347 Aughey, Samuel, : : : E 5 : 54, 184, 200, 335 Auk, Great, : : F , : : , : : 3, 354, 356 Bailey, Charles E., 124, 142, 166, 169, 170, 175, 178, 214, 240, 241, 253, 256 S. Waldo, . : é ; : : : : ‘ ‘ 5 eke) Baird, Spencer F., ; : ; ; 2 ; : 3 ‘ ; 13 Ballou, H. A., . i : 5 : . : : : : pe me sy Bangs, Outram, : . : : : ; j F , 5 Bt Bark louse, oyster-shell, : ; : , ; : . A al@eh al gis) Barton,.b.0:, © : ; é : s : : 5 P Pa god Bartramia longicauda, ; : 3 = : 3 é ; . 336 Baskett, J. M., . : : : : : : : : 5 . 259 Baynes, Ernest Harold, : : ; ; : 420, 427, 428 Beal, F.E.L., . 58, 59, 61, 162, 211, 226, 227, 234, 236, 239, 259, 264, 283, 985, 293, 305, 318, 321, 342 458 INDEX. Beetles, Colorado potato, elm-leaf, PAGE . 16, 27, 29, 216, 218, 330, 342, 432, 433 207, 211, 234 May, 10, 11, 183, 220, 227, 234, 238, 348 rose, : ~ » 1605248 striped cacumiees 227, 234, 342, 348 Bendire, Charles, 232, 235 Bibio albipennis, 286 Bigelow, Henry B.., 147 Bird, Myrtle, 201 Planting, 179 Teacher, : : 188 Bird houses, instructions foe aking. : 3 : : z : 390-397 sizes of, : 394 Bird killing by foreigners, 358, 359 Birds as tree planters, 93 as tree pruners, i 99 destroying rodent cate: 76- 80, 367, 368 fruit for, 374, 430 flight of, 2 Bittern, American, 352 Least, ; 352 Blackbird, Cow, : 320 Crow, 114, 130, 135; 313; 070 Marsh, 5 eult) Red-winged, 60, (1a) 122, 125, 128, 130, 131, 319 Rusty, 122, 312 Skunk, 322 Western Crow, 313 Yellow-headed, 5 67 Blackbirds, 9, 69, 75, 76 Blissus leucopterus, 33 Bluebird, Bobolink, . Bob-white, ; Bombycilla cedrorum, Bonasa umbellus umbellus, Borer, bronze birch, maple, Brewer, Thomas M., 115, 290, 389 125, 127, 322 Brewster, William, 13, 218, 243, 267, 269, 331, 328, 390, 404, 410, 418, 420, 427 estate of, Browning, Wm. H., Bruchus hibisci, Bruner, Lawrence, Bubo virginianus virginianus, Bucculatrix pomifoliella, Buchheim, Emma §., Buckham, James, Bull bat, : Bunting, Bay-winged, Black-throated, Cow, Indigo, Burroughs, John, Butorides virescens virescens, 320 115, 122, 298 189, 190, 199, 226, 312, 363, 371 351 INDEX. 439 PAGE Butterfly, mourning-cloak, . . : - f : F ‘ : 16 mourning-cloak, caterpillar of, 227 parsley, eggs of, 305 Cabbage worms, 302 Calosoma scrutator, : ; : : ; ; , ; 95 Canary, Wild, . F ; ; ; ; i ; : ; £94, 222 Cankerworm, fall, 5 P ; : 169 spring, 70, 170 Cankerworms, 125, 127- 129, 131- 135, 140, 141, 175, ‘181, 188, 191, 195, 210, 221, 231, 295, 302, 304 Carpocapsa pomonella, 5 2 ’ : : : : : 5 Alea Carpodacus purpureus purpureus, : 220 Catbird, . : Dios 108s 109) 115, 122, 125- 128, 139, 181, 283, 371 Caterpillars, American tent, a 7 tS) 12385126; 127, 130-1355 195. 208; 226, 302, 304, 343 brown-tail moth,. 130-140, 184, 195, 205, 226, 264, 266, 302, 304, 316, 370 forest tent, : . 69, 120, 125, 127, 138-140, 175 gipsy moth, 3 63, 12y 126, 128, 129, 1383-136, 138, 141, 144, 145, 157, 160, 175, 181, 184, 188, 195, 205, 208, 218, 226, 333, 369 oak, F e ; : ; 3 : : : ; PAP red-humped, ; : d : , ; , : 4 P27(P tussock moth, : ; : : : : ; ; : 5 UO) Cedar Bird, : ‘ : : ; : ; ; 51, 57, 60, 69, 209 Certhia familiaris americana, ; : ; : ; 4 : a as Cheetura pelagica, , ; : i : ; : : : . 340 Chapman, Frank M., : : ; : : SO LOM ZOO oso Charles, Salem D., - ; 3 : i : : , = 420 Chebec, . ; : : ; : , ‘ , ; ap pts) Chermaphis erinitolies 3 : : é : : ‘ ‘ = 223 Cherry Bird, . : ; ; : é : F : : . 209 Chewink, . 3 : ; : : : : : 126027, 1B9N ats Chickadee, . 53, 115, 122, 124, 129, 130, 136, 140, 148, 145, 146, 163, 4C0, 426 Chinch bug, : : : : F 5 : 8 ly Pisy OE Chip Bird, Chipper, Chippy: : , 2 ; : ; : . 303 Chittenden, F.H., . : : 3 : ; : ‘ ; we 435 Chordeiles virginianus virginianus, ? : ‘ F : ‘ . 341 Circus hudsonius, : : ; 5 ; : ; : : . 367 Cistothorus stellaris, . , , : : : : ‘ : 5 B50) Clerey, J.©., . : A : ‘ 4 A 3 ; se OA Coccyzus americanus americanus, : : F 6 - S . 265 erythrophthalmus, : F , : : F . : . 263 Colaptes auratus luteus, . : : : : ; 3 : . 260 Coleman, Robert H., : ; 5 : : ; : Q so Colinus virginianus virginianus, . : : : : é ‘ 5 BPI Colt, W. C., : é 3 ; ; : : F ‘4 . LO Contarinia tritici, ; ; f ; : . A Corvus brachyrhynchos Beachithynchos, i s 4 A 4 . 369 Corydalis cornuta, . : : : : ‘ : . ‘ + 2A: Cotton worm, . ; F : 2 , ; : ; : pe ass) Cowbird, . : ; 5 : : : F : , ; . 320 Crane, Whooping, : : , : : : ; : ; Ole Creeper, American Brown, . ; . ; ; : ; . 177 Black and White, . : : : ; ; Y ; 144, 191 Crickets, western, : : 5 : : ‘ : : ; 65, 66 440 INDEX. PAGE Crow, : 2, 8-11, 26, 45-50, 75, 97, 114, 115, 125, 126, 129, 137, 145, 146, 333, 369 Rain, : j ; . ; ; : : ; : . 263 trapping the, ; : F : ; ; F : : . 406 Cryptoglaux acadica acadica, : : ; : : ; ; . 868 Cuckoo, Black-billed, : 114, 115, 125, 128, 136, 1388, 1389, 142, 144, 263 Yellow-billed, : : . 60, 61, 114, 115, 126, 128, 138, 140, 146, 265 Curlews, j : 2 q 4 : : : : 68, 75 Cutworms, . 11, 27, 34, 157, 160, 181, 183, 287, 291, 295, 315, 316, 318, 3380 Cyanocitta cristata cristata, : : : . : ; é . 3869 Dearborn, Ned, : : 5 ‘ : p : ‘ . 45, 48, 61 Dendroica estiva estiva, . : F : ; ; ; ; . 194 coronata, . ; : : : 3 A é : F - 201 pensylvanica, : : ‘ ; : ; : ; ; ~ = 192 vigorsi, : 5 : s ; : , : : ; . 200 virens, : ‘ ‘ ; : ; ; : ‘ : 198 Diacrisia virginica, . ; ; 2 ; P , : : Pael20) Dickcissel, ; ; : j E : : : : 3 5 | fete) Dike, A. C., : ; : 5 f ; : : : 362, 408, 420 Diomedea immutabilis, 3 , : : F ; ‘ : x, 282. Dobson, . : f : - - ‘ : j ; : . 24 Dolichonyx oryzivorus, : : : : : : ; ; . 322 Dove, ; i : : : ; 2 ‘ F ; 2 Lo e25 Carolina, . : ; é ; ; . ‘ ; : . 324 Mourning, . . ; é ; : ; 3 i ‘ 60, 324 Turtle, 3 : ; ; ; : ; ‘ ‘ , a eae! Dryobates pubescens medianus, . : : : ; 2 : . 249 villosus villosus, . : : F : : : 5 3 . 258 Duck, Black, . : : : ; é : : é : . o0d Wood, : , : : : : : ; 2 5 a SS Dumetella carolinensis, : ; : : : s Het 4h ele Dutcher, William, : Hl p : ; ‘ ; : 363, 418, 419 Eagle, Bald, 3 : : : : ; : : . 3 Sc iols) Egrets, destruction of, ‘ : : : : : ; ‘ 2) BID Elaphidion villosum, . 5 : A . F : 5 : wp'9D Mlhot, DaG. , : é : : : : P 5 Ese tO 18f6 \Wfos : 2 : : 3 : ; ; j : Jed sea, Ellsworth, J. Lewis, . : : , : : 3 : : . 419 Empidonax minimus, ; . : 3 : ’ : : mar VS) Euproctis chrysorrhea, : : : ; : ; F : ete S Euvanessa antiopa, . : : : ; ; : ; ‘ 3 16 Faleo columbarius columbarius, . : ; ; ; j ‘ . 3866 peregrinus anatum, sparverius sparverius, . : 4 f : ‘ 3 : - 066 Fannin, J., : 3 5 ; : 5 3 : : 332 Barleyerdle sco me ; ; : : : , . : ‘ emer Fay, Wilson H., : : } , : ; F : . 147, 480 elt; Hes ‘ : : : ‘ : F : : 69, 120, 247 Fernald, C. H., . 5; : A Wit ahe ; : : 142, 240, 346 Hen : : : k : ; 5 : : : Pan 51 elds |G rower - A : - : 3 : : . 419, 428 INDEX. 441 PAGE Finch, Crimson, . F 5 : : : 4 ‘ : 5 PRAY Grass, F 3 - : 4 : 5 : ; é . 811 Purple, F 5 . é ' ‘ & : 122254220 Fire Hang Bird, ° 3 < Fi . 3 4 : ee ane Fisher, A. K., . : : : : ; 5 : . 66, 79, 80, 206 HiskesWe by 5 : : ; : 3 ; ; : ; = GS Fitch, Asa, : : 5 2 : : : : : k 28, 255 Flagg, Wilson, . 5 : . 2 i ; 73, 204, 287 Fletcher, James, : : s : Z ; ; ; 35 Flicker, . : 2 : ; : : G0} 126, 139, 146, 249, 427 Northern, . : ; ; : ’ F : Sle 2260 Northern, iene Ole : : ‘ F : & PAoi Flies, crane, ‘ ; ‘ ‘ : 3 ; | BB, 207, 211, 214, 346 house, : : : : F ; 4 P 5 a 62087235 March, ; : : P : : : 4 ; : . 286 May, 2 E A 3 i A é 4 : ‘ , 230 robber, é : Fs : a : i . 239 Flycatcher, Great- eine : ¥ : . 114, 115, 141, 144 Least, : . ; 5 ; 114, 115, 122 SO so. Lal as 229 Forbes, S. A., . : : : 5 : ‘ : Ne gal Wf Fruit for birds, . F ; : : : : : 374- 377, 430-432 Furst, Herman, : y . 5 3 i 4 A i 17 Galerucella luteola, . ; ; : : ‘ ; i , 5 AU Gallinago delicata, . 2 , : 5 e : : ; 5 BH Game birds, destruction of, : ; 3 ‘ : 3 . 76, 84, 356 Gentry, T.G., . : 2 : : ey : 192, 213, 234, 302 Geothlypis trichas iriehaet ‘ é ; ; : : ; : . 186 Glover, Townend, ‘ é 5 : < £ : 29, 251, 4382, 434 Goldfinch, American, - : : : , 22a boa Goodell, Henry H., . ; - : : : ; : ; ; 36 Goodmore, §. E., ; : : s ‘ 3 . : F - 68 Gophers, . E , : : d A 5 ‘ P : : 78 Goshawk, P : , : 3 f : x : F 62, 366 Grackle, Bronzed, : ; : ; ; : : ; 5 A axle? Purple, F j ; : ; : ; 2 : 3 114, 313 Rusty, : - 5 Bul Grosbeak, Rose- heedsted, 52, 115, 122, 125- 128, 131, 133, 140, 142, 144, 145, 216 Ground Bird, . é ; : : : 4 ; : : . 299 Grouse, . : F : 3 ; : : F : : 11S). ais! Ruffed, : F , z ‘ j : ; . 61, 99, 267 food plants, iit of, : g ; 2 : : 3 piles Grub, white, , : : : : ; P : . 10, 76, 181, 289 Guano, . 3 : Z 5 Fi : . ; : 82 Gull, Brown- Nidwded: A : P : : ‘ ; : ; . 405 Franklin's, : : : : , : : : ; 61, 67 Gulls, utility of, : : : - ; P : : 80, 81 Hair Bird, P : ; ; ‘ : P ‘ F F ers) Hang Nest, ; : F F , , : ‘ : 3 . 224 Hares, : ; : ; : : : ; : ‘ ; Se ES Harris! WwW... : 3 é : 5 i : P ‘ zs 226 Harvey, F.L., . : : 4 : 2 ¢ F ; ; 5 60 442 INDEX. PACE Hawk, : : ‘ ; ; j ‘ : j ‘ 5 2 186 Bog, . : ‘ : a A ; . 5 a : Od Chicken, . A : é 5 : ; é ‘ . 0060 Cooper's, . : F _ ; ; : ; fe ‘ . 366 Duck, : ‘ ; 5 : A - ¥ z ; . 366 Fish, . ; : ; A : ‘ ; F ‘ 5 4, 413 Marsh, : , : : : ¢ : : , . 3867, 406 Pigeon, : : : ‘ c : : ‘ A : . 366 Red-shouldered, . : : ‘ : ; , . 866, 406 Sharp-shinned, . . f : ; J ; : : . 866 Sparrow, . : 7 ‘ 5 - ; 5 4 . 3866, 427 Hawks, trapping, _.. : f ; é : : P j . 406 Heath Hen, : , j 5 : , : ; : F 26, 266 Heisemann, Martin, . 5 , f . 4 3 ; a2 A 27 Heliophila unipuncta, ; : : F : : : F ee Oe) Hellgramite, é ; . : ; ; , ; ‘ ; . 214 Helops cereus, . 3 . 7 , : ; j 3 ae eS Hemerocampa fentustioaia: : " P j : j ~ = 1125120 Henshaw, Henry W., : ; : : ; . ; . 419 Heron, Black- eacenedl Nicht, A E c A é : ‘ ou Great Blue, F s : 4 : : 3 : : 67, 352 Green, ; ; ; : é é ; : : 5 . 3851 High-holder, : é : : ; 3 ‘ : é , . 260 High-hole, , : ; 3 3 : 3 ‘ : : . 260 Hill, Henry B., . : é : : : : . : 2 420 Hirundo erythrogastra, : 4 % . é : 5 : . 345 HodrenCa kre. : = : 3 ; j , 267, 209) 2aleaites Hoffmann, Ralph, ; : : ‘ é s 191, 199, 310 Hopkins, A. D., : ; 3 : : : : : ; elif Hornaday, William T., : : : ; : : : ; . 354 Howard, L. O., E j d : ; ; : 153, 154, 162 Hummingbird, Buby iioaicd: : F ; . j : S1224240 Hylocichla fuscescens fuscescens, 5 : ; : ; ; . 156 mustelina, . ; 2 : : A . F é : . 158 Icterus galbula, 3 : : F : ; ; : ; . 224 Indian Hen, ; ; : : : : 2 : ’ 352 Indigo Bird, : ; : : ; : j . : 137, 139, 298 Insect pests eaten by birds: — ants, . 60, 160, 220, 232, 238, 252-254, 259, 261, 272, 305, 311, 316, 320, 321, 345 army worms, : ; ; 36, 218, 272, 295, 309, 316, 323, 330, 349 bark lice, . E . ; ; ; : ; ; 2252, beetles, bark, é ; : ; F ; , 104, 251 click, . , e : 160, 214, 227, 231, 295, 299, 312, 320, 345 Colorado potato, . 16, 27, 29, 70, 216, 218, 220, 330, 342, 432-434 elm-leaf, ; : 207, 211, 234 May. 1s ewe 1, 183, 220, 297, 234, 238, 273, 288, 303, 330, 342, 348 rove, : ; ; : 345 snap, , : : : : é : 175, 181, 227, 290 striped cucumber, . . E ; 227, 234, 330, 342, 348 304 beetworms, A ; : ; 3 4 : ; : ‘ brown-tail moth, . 1830-140, 141, 147, 148, 160, 184, 195, 205, 214, 234, 266, 288, 299, 302, 304, 370 bugs, cabbage worms, . cankerworms, caterpillars, cattle flies, chinch bugs, codling moth, cotton boll weevil, crambids, crickets, . : currant worms, cutworms, . lI, fall webworms, gipsy moth, caterpillars, . eggs, grasshoppers, Hessian fly, house flies, leaf hoppers, leaf rollers, leopard moth, locusts, : measuring worms, mosquitoes, moths, nun moth, . pea louse, : pear tree psylla, . plant lice, 28, robber-flies, sawflies, spanworms, spiders, tent caterpillars, American, tent caterpillars, forest, Insect pests eaten by birds— Con. brown-tail moth caterpillars, INDEX. 443 PAGE 130-140, 184, 195, 205, 226, 264, 266, 299, 302, 304, 316, 370 19, 153, 181, 182, 192, 198, 200, 211, 214, 294, 295, 330, 340, 342 : 5 é : 3 : A 278, 302 70, 125, 127-129, 131-135, 140, 141, 160, 169, 170, 175, 181, 188, 191, 195, 210, 221, 231, 291, 295, 302, 304, 320 7, 10, 16, 17, 20, 54, 55, 56, 61, 64, 105, 106, 116, 118, 129, 160, 183, 190, 205, 231, 232, 252, 261, 263, 264, 266, 272, 284, 285, 286-291, 294, 295, 298, 299, 302, 304, 320, 321, 323, 336, 360 234, 235, 238 : ° : . s : . 27, 28, 33 . 35, 150, 151, 167, 196, 231, 250, 251, 304, 346 34, 330 : : ‘ : : : : : 345 55, 61, 65, 160, 181, 183, 211, 238, 261, 272, 290, 299, 318 : : . : ; : : 5 . 304 16, 27, 34, 157, 160, 181, 183, 272, 275, 278, 286-291, 295, 299, 309, 311, 312, 315, 316, 318, 330 3 : : : : ; ; ‘ 00) 64, 70, 142, 147, 192, 205, 214, 227, 231, 232, 234, 238, 259, 333 GS le ISI 23 255126 2820 els3— 136, 138, 141-147, 157, 160, 175, 181, 184, 188, 192, 195, 208, 214, 218, 226, 231, 234, 266, 288, 299, 304, 320, 333, 360, 361, 369 : : : ‘ é : : 64, 147 16; 17, 54, 57%, 60; 157, 160; 18i, 183, 187, 196; 206, 207, 211, 214, 220, 223, 234, 238, 259, 261, 265, 272, 275, 289, 292, 294, 299, 304, 305, 309, 312, 315, 318, 321, 323, 336, 340, 348, 344, 352, 369 : 185, 223 : z : 200, 203, 238, 346, 348 187, 194, 208, 238, 273, 299, 303, 305, 342 188, 214, 232, 346 ; : : ; : : 107 . 65, 67, 69, 206, 214, 265, 299, 315, 318, 330 ; : 195 60, 207, 232, 238, 298, 346 161, 196, 198, 203, 206, 290 17 . 304 2 : : ; : : 153, 377 62, 71, 121-128, 153, 161, 167, 168, 175, 188, 194, 196, 203, 221, 223, 227, 232, 252, 272, 339, 344 : 239 178, 228, 303 : : 3 : ; ‘ F . 288, 343 54, 167, 182, 194, 196, 272, 294, 299, 303, 321, 340, 344 117, 118, 123, 125-127, 130-134, 195, 208, 226, 302, 304, 343 . 69, 120, 125, 127, 138-140, 160, 175, 226, 288, 320 444 INDEX. Insect pests eaten by birds — Con. tree hoppers, wasps, weevils, white grubs, wireworms, wood-boring insects, Insects, parasitic, predaceous, transformations of, destroyed by birds, To caterpillar, Tridoproecne bicolor, Isia isabella, Ixobrychus exilis, Jay, ; Blue, dJGimilkes, ds Who Lee. Job, Herbert K., Judd, Sylvester D., Juneo hyemalis hyemalis, Junco, Slate-colored, Kaltenbach, J. H., Keyser, Leander S&., Kimball, H. H., King, F. H., Kingbird, Western, Kingfisher, Kinglet, Golden-crow ant Ruby-crowned, Kinglets, Kirby and Spence, Kirkland, A. H., Lachnosterna, Lachnus strobi, Lanius borealis, Lanivireo flavifrons, Lark, Old-field, Larus franklini, Lawrence, Samuel C., Leopard moth, Lepidosaphes ulmi, Leptinotarsa decemlineata, . Lilford, Lord, 107, 168, 19 PAGE ; 206, 272, 273 pe SIS ea BBs ail 206, 208, 214 . 10, 16, 54, 180, 220, 272, 288, 289, 315 Pee), iil, WG, ZrO, 2, 214, 251, 253, 254, 259, 160, 288, 290, 309 273, 288 . 18-20, 240 Bee lis 13-15 53- (2, 104- 111, 148, 150-154, 174, 192, 205, 210, 221, 223, 226-228, 231, 232, 235, 238, 239, 244, 245, 247, 248, 250, 256, 259, 261, 264, 266, 272, 273, 275-278, 282, 287-295, 298, 299, 302, 304, 305, 309, 311, 312, 315, 316, 318-321, 323, 329, 330, 333, 335, 340, 342-350 od 121, 178, 181-183, 186, 272, 114, 115, 5 2), 37, 45, il 136, Ike 264 344 120 352 12, 94, 404, 409 M1, 114, 115, 126, 129, 132, 136, 138, 159, 144-146, 369 276, 284 : : . 420 213, 278-2 a 294, 300, 305, 326, 327, 329-331 : . 300 122, 296, 300 6 a 173, 185 326 175, 206, 272 2M, 136, 141, 143, 145, 235 57 161 : 160 . 30, 64, 73 228 , 237, 252, 256, 304 Nash, C. W., Natural enemies of birds, Nectarophora pisi, 3, 7, 8, INDEX. 445 PAGE Linnet, Gray, 220 Red, ' . 220 Lintner, J. A., 28-31, 33, 34 Liparis monacha, : 17 Locust, Rocky Mountain, 28, 34 ravages of, 67-69, 74 Lugger, Otto, 433 Lyford, C. Allan, 118 Mackay, George H., 418 Malacosoma disstria, . : ~ 69 Marlatt, C. L., 33, 35, 36, 39 Martin, Bee, 235 Black, 347 Purple, 347 Martins, 55 Mathews, Schawler, 265 Mavis, Red, 179 Mayetiola destructor, 33 Maynard, C. J., 51 “Meadowlark, ; 316 Melanoplus femur-rubrum, 272 spretus, : 34 Melospiza melodia metodin: 299 georgiana, . 349 Merriam, C. Hart, : 59 Florence, 236, 241 Mice, field, 77, 78, 80 meadow, 367 Midge, wheat, 32 Millais, J. G., . 405 Millinery trade, 85, 357 Minot, H. D., - 164, 205, 218, 308, 309, 404 Mniotilta varia, 191 Molothrus ater ater, . ; P : z : : : $ . 320 Mosher, F. H., . 51, 52, 62, 124, 144, 184, 193, 195, 225, 230, 241, 333 Moth, brown-tail, 39, 124, 130, 147, 148, 205, 227, 234 * cecropia, : : . 109 codling, : Soy nl Bal 0) fall cankerworm, eggs of, : : 175 gipsy, 38, 39, 64, 128, 142- 14, 147, 148, 192, PAU PIE BR, sil, ays 234, 238, 259, 333 leopard, 107 luna, . 214 roqbualy a 17 Bie phensils, 2209 tent caterpillar, eggs a 167, 369 tussock, 232 Munger, H. C., 326 Musselman, C. C., 55 Myiochanes virens, 231 . 44, 45, 227, 318, 330 10, 11, 12, 361-371, 403-410 304 446 INDEX. Nesting boxes, instructions for making, sizes of, Nests, methods of protec: Nighthawk, Nuthatch, Canada, Red-breasted, White-breasted, Nuthatches, Nuttall, Thomas, Nyctea nyctea, . Nycticorax nycticorax nevius, Oak pruner, Oriole, Baltimore, Orchard, Orioles, Osborn, Herbert, Osprey, Otus asio asio, Oven-bird, : Owen, Daniel E., Owl, Hawk, Long-eared, Barn, Barred, Great Horned, Hoot, Saw-whet, Sereech, Short-eared, Snowy, Owls, Packard, A. S., Paleacrita vernata, Palmer, T.S., Pandion haliaeens capolinaueiet Papilio polyxenes, Partridge, Passerculus a namichousis savanna, Passerina cyanea, Pea louse, Peabody Bird, Pear tree psylla, Pélicot, P., ; Pellett, Frank C., i Penthestes atric pilus Abicenailes Petrochelidon lunifrons lunifrons, Pewee, Bridge, Wood, Phasianus torquatus, Pheasant, Ring-necked, PAGE 390-397 . 393 409, 410 60, 341 > LG - 115,176 115, 122, 171 = 163 251, 263 367 351 226, 231, 99, 256 70, 114, 115, 122, 125- 128, 131- 133, 136, 137, 140, 148, 224, 230 224. 69, 108 187 413 . 368 115, 122, 124, 127, 134, 141, 144, 146, 188 42, 45, 51 367 368 79, 368 367 367 367 . 368 368, 427 78, 367 ood 77, 368 32-36, 111, 112, 256, 348 3 540: 418,419 413 305 : : 233 104, Sees 122, 126, 141, 143, 231 332 332 INDEX. 447 PAGE Philohela minor, ; : : . 336 Pheebe, . 114, 115, 145, 233, 388 Phoebe Bird, 233 Phorodon humuli, 29 Piesma cinerea, é ; . 174 Pigeon, Passenger, » 05 O20, O04, S00 Pigeons, domestic, ‘ FA , : tos 20 Pipilo erythrophthalmus aeythrophtliainws. : ; : ; ; . 218 Piranga erythromelas, 212 Pissodes strobi, ; 168, 254 Planesticus migratorius Ni a attt er : : 3 = . 282 Plant lice, 28, 62, 71, 122, 124-128 175, 196, 203, 221, 223, 339, 344 eggs of, 162, 223 Plover, 26, 43, 67, 68 Upland, 2 75, 334, 336 Pocecetes gramineus gramineus, 311 Porthetria dispar, 38, 64 Porzana carolina, ; . 350 Potato beetle, Colorado, Pliaheationt of, 29, 432-434 Poultry, ; , : se tof) Prairie Chickens, . 67, 68, 75, 76, 84 Proctor, Thomas M., 93 Progne subis subis, 347 Psylla pyricola, 153 Quail, . 26, 67, 68, 75, 76, 325 Marsh, 316 Quiscalus quiscula zeneus, 313 Quiscalus quiscula quiscula, 313 Rail, Sora, 350 Virginia, 350 Railroad worm, 231 Rain Crow, 263 Rallus virginianus, 350 Raspail, Xavier, : ; : : : : . 408 Redstart, American, 115, 122, 129, 131, 135, 138, 140, 143, 196 Reed Bird, 322 Reed, C. A., 199 Regulus satrapa satrapa, 161 Rhagoletis pomonella, 151 Rice Bird, . ; . 322 Ridgway, Robert, By, Ls, BAe Rileya©. Ven 9. 29, 34, 35, 432 Riley and Howard, 65, 75 Riley, Packard and hones; 34, 69, 75 Riparia riparia, 344 Robin, = 9; LOG; Us 45, ay 122, 129, 131- 133, 136, 138- 140, 147, 282, 315 Golden: 224 Ground, 218 Wood, 158 Romaine, C. E., 330 Rowley, Francis H., 420 Russell, John §., 348 448 INDEX. Samia cecropia, Sanderson, E. D., Sandpiper, Bartramian, Spotted, , : Sapsucker, Yellow-bellied, . Sayornis Phcebe, Seale, San José, Schizoneura lanigera, Schizura concinna, Seeds eaten by birds, . Seiurus aurocapillus, . Seton, Ernest Thompson, Setophaga ruticilla, Shaw, Henry, Shrike, Northern, Shrubs, fruit-bearing, Sialia sialis sialis, Silkworm, American, . Sitta canadensis, : carolinensis carolinensis, Smith, John B., Snipe, : ; : aerial performance of, . Wilson’s, Snowbird, Black, Spanworm, currant, Sparrow, Bush, Chipping, English, Field, Ox ; Grasshopper, Ground, Henslow’s, . House, Savannah, . Song, Swamp, Tree, Vesper, Whitethroated, Sparrows, food of, Sphyrapicus varius varius, . Spizella monticola monticola, pusilla pusilla, passerina passerina, Spoonbills, Squirrels, . Stake-driver, Starlings, . 3 Stockwell, J. W., Strix varia varia, Sturnella magna magna, 7, 60, 101, 166, 176, 178, 194, 201, 202, 206, 214, 218, 226, 238, 273, 281, 290, 294, 296, 316, 324 PAGE . 108 174, 433 334, 336 ° . 335 114, 115, 262 233 151 203, 252 272 188 343 . 196 . 142 A . 370 » 374-376 . 290 30, 108 176 > avd 107, 433 43 338 337 59 300 112 301 : : . 55, 114, 115, 122, 126, 136, 143, 303, 398 . 21, 56, 115, 134, 136-138, 140, 141, 292, 294, 344, 370, 389, 407 . 114, 122; 127, 131, 140, 301 296 308 299 : 5 é 309 56, 206, 225, 292, 370, 426 a . : 310 42, 114, 128, 134, 141, 296, 299 : A 349 306 : 311 114, 122, 131, 307 295 262 306 301 303 ; OS 94, 364, 408 . 352 17, 65, 426 36, 37 367 316 INDEX. 449 Swallow, Bank, Barn, Chimney, Cliff, = Eaves, House, Tree, White- pellied: White-breasted, Swift, Chimney, Symmerista albifrons, Tanager, Scarlet, Summer, Teeter, Tegetmeier, W. B., Telea polyphemus, Telmatodytes palustris paluctris Terns, eggs of, Thayer, Abbott H.., Bayard, Theronia, : Theronia rielenoeeshala, Thistle Bird, Thompson, Maurice, Thoreau, Henry D., Thrasher, Brown, Thrush, Brown, Golden-crowned, Hermit, Song, Tawny, Wilson’s, Wood, Thrushes, Tip-up, Titmice, Titmouse, Black Sapa: Torrey, Bradford, Tower, W. L., Towhee, Toxostoma rufum, Treadwell, D., Treat, Mary, Tree hoppers, purtalos Trees, fruit-bearing, Troglodytes aédon aédon, Tropaea luna, Trouvelot, Leopold, Turner, R. E., Tuttle, A. W., Tyrannus tyrannus, verticalis, 60, 61, 346, 344, 128, 340, PAGE 344 345 340 346 387 344 389 344 344 387 272 63, 115, 122, 125, 127, 135, 137, 144, 146, 212 30, 240, 246, 96, 115, 134, 211 335 79 108 350 80 82 418 417 241 239 222 258 299 179 126, 127, 131, 179 115, 136, 137, 45, 188 156 158 156 156 93, 115, 126, 127, 133, 134, 139, 158 114, 115, 122, 143, 108 335 it7/ 163 199 433 218 179 44 211 272 374-376 30, 31, 38, 292 108 108 74 147 235 57 450 INDEX. PAGE Veery, F ; i : : : : : ; ‘ . 156 Vines, fruit- bearer ; : : : : : 374-376 Vireo, Red-eyed, : il, Malay, aI 155, 127, 12 9, 136- 138, 140-142, 146, 204 Solitary, . : F é P ; - : : ‘ > PLR Warbling, . : : ; : : : : : . 115, 206 White-eyed, é 3 ; : 5 ; : sie li BOE: Yellow-throated, ‘ 3 5. ality ae 134, 138, 140-142, 207 Vireosylva gilva gilva, ; 5 ; : : : ; : . 206 olivacea, . : 3 : : : : ; 5 ; . 204 Von Berlepsch, Baron, ‘ - : : : : ‘ » "425.498 Vulture, . ; ; ; 5 ; . i E 5 4 tenes Wake-up, ; : ; é : : : : ; : . 260 Walsh) Bao ; : ; : 5 : , 5 ae Warbler, Bl: ack and Ww fhitet 115, 122, 124, 125, 127, 130, 132, 135, 140, 141, 191 Blackburnian, . ; : : 5 , ; : : 5 Ow Black-poll, ; ; : 3 : 3 : ; : (alee? Black-throated Blue, . : : : : ; : 3 waelt22 Black-throated Green, ; : : : 5 ; 115, 122, 198 Blue-eyed Yellow, é : : , : . . 194 Chestnut-sided, . : Tas UA UPA Pee 139, 134, 136, 139-141, 182 Golden-winged, . : ’ : ; 5 1G ati Se sys Si. elit Hooded, . : ; : ; ; : é : é ss Magnolia, ; : ‘ : : . : 122 Myrtle, , : : : ‘ ‘ : : » il 122, 153, 201 Nashville, . ; ; , . . ; ; 115, 1381-133, 139 Palm, : : , : 5 ; , ; P . 186 Parula, : ; : F ; 3 : 11105), 12 5 WAG, Ie Stele Pine, . ‘ : : $ : : : é : . 200 Pine-creeping, . : ; : : 5 : . 200 Yellow, ; : ; ; ly, Ue Nee i 32 136, 140, 141, 1438, 194 Yellow-rumped, . : : ‘ : : j : : . 201 Warblers, ; 3 5 : : ; : : USES Warren, B. H., . : : : : ; 5. (0), aienl. 206, 218, 245, 315 Waxwing, Bohemian, : - : ; : : . 209 Cedar, 5 ; : ; ‘ : : ‘ 115, 131, 140, 209 Webster, F. M., : ; : : : ‘ : ; 2 62595346 Weed, A.T., . : ; : ; : ; : ; : . 433 Weed, Clarence M., . : ‘ : : 45, 48, 55, 168, 183, 202 Weed and Dearborn, . : j 5 ; ; F ; sale tre ASK) Weed seeds eaten by birds, 5 GO), Wilby Puls, BR 2PAl PPIs}. O57, 260 Qala 273, 274, 279, 280, 281, 294, 295, 296, 297, 300, 301, 303, 305, 306, 307, 308, 309, 311, 312, 318, 320, 324, 329, 330, 331 Weevil, Mexican cotton boll, y 5 ; : : é : 34, 330 pea, j : : : 5 é : F F 226 White pine, i , : : : : ! , = HGS 7254! Wiel SD arAt er 3 . : : : ; ‘ : : 56, 73 Wheeler, Wilfrid, : : : : 5 : : 5 pe esta Wheelock, Irene G., . ; ; : P ' F J ; . 290 Whip-poor-will, : 3 : : 4 i F : : . 342 Widmann, Otto, E : , : : : ‘ : - . 348 Wilson, Alexander, . ' : ; ‘ 3 : ; . 244,320 Wilson and Bonaparte, ’ : ; : : ; : ‘ : 4 Window feeding shelf, : E : f ; f ‘ 381, 384, 413 INDEX. 451 PAGE Winter Chippy, ; : : é : : : ; ; . 306 Wood, E. W.., ‘i k é : 3 ; ; ; re a0) Woodpecker, Downy, ; ; 114, 115, 122, 129, 144, 146, 147, 248, 249 Gaffer, : 5 é ‘ : - ‘ : ; : . 260 Golden-winged, . 5 : 4 ; : ; ; A . 260 Hairy, : : : * , : . 114, 115, 146, 247, 248, 258 Partridge, . , ‘ : ; 5 : ; : c . 260 Pigeon, : : : ; : : : ; : : . 260 Red-headed, : ‘ ; a : ; . 249, 355, 427 Wren, House, . : : : . : : 5 : 54, 115, 292 Long-billed Marsh, : é k F 2 ; : : 54, 350 - Rock, : : ; ; 3 : : : : i » 04: Short-billed Marsh, : i : : é : : : oO) Wright, Mabel Osgood, . . : ; : ; : e 5 BBL Ra Yellow Bird, . : : 5 : ; ; 5 : . 194, 222 Summer, . ; F : : 5 : : é ; . 194 Yellow-hammer, \ ; F ‘ : ; 3 : : . 260 Yellow-throat, Maryland, . - ; ; 6252 lilo aos Se Zamelodia ludoviciana, : A ; : : ; ; : 5 PUG Zenaidura macroura carolinensis, : : ; : : ‘ a By! Zonotrichia albicollis, 2 é 3 4 : 5 : : . 3807 - ¥ _ * h ‘ ; - ' = 5 . ‘ NSN NSN OL NE a Oa NE Nl. 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