V FOR THE PEOPLE FOR EDVCATION FOR SCIENCE LIBRARY OF THE AMERICAN MUSEUM OF NATURAL HISTORY OTHER WORKS BY THE SAME A UTHOR The Natural History of South Africa Mammals. 4 Volumes The Monkeyfolk of South Africa The House Fly: A Slayer of Men Publishers : Messrs LONGMANS, GREEN, AND CO. 39 Paternoster Row, London The Snakes of South Africa: Their Venom and the Treatment of Snake Bite Snake Bite and its Scientific Treatment Publisher : Mr T. MASKEW MILLER, Adderley Street, Cape Town The above-mentioned Works are all Profusely Illustrated Extract from Letter by R. Roycroft, M.B., CM., District Surgeon, Grey town, Natal : " I take this opportunity to express to you my thanks for the many hours of genuine pleasure you have given me by the reading of your so charmingly worded works. It is very seldom that a scientist combines the two factors : (1) Know- ledge 5 and (2) the skill of being able to present that knowledge in language 'understandable of the people.'" THE NATURAL HISTORY OF SOUTH AFRICA Vol. I. Made in Great Britain TO THE Loving Companion and Helpmate in my Labours MY WIFE THIS BOOK IS AFFECTIONATELY DEDICATED THE AUTHOR (1922) PREFACE In the presenting of these volumes on the birds of South Africa, it has been my endeavour to create in the minds of my readers a love and a keen appreciation of our beautiful and useful allies. From my earliest youth I have made an intimate study of the creatures of mountain, veld, forest, and stream in their native haunts. The results of some of these studies have already been published in book form in the " Natural History of South Africa " and " Snakes of South Africa." My intention was to have published these volumes at an earlier date, but, owing to unforeseen circumstances, their publication has been held over. The results of several years of research and study of the birds of South Africa were recorded in a number of diaries. These records were lent to a naturalist friend with permission to take notes from them. Alas ! he lost them all. It was a sad loss to me, resulting in further years of investigation. The first volume deals chiefly with the economic side of bird life. There is much spade work and great battles yet to be fought by the human race against the adverse forces of Nature which retard the vii PREFACE spread of the human race over earth's fair surface. Our most formidable and ruthless opponents are the insects. It is now almost an even fight for supremacy, and unless we combine and utilise our forces more effectively and efficiently, we shall find it very difficult to secure a livelihood. A few more wars, with the inevitable disorganising of the forces employed against the insect hosts, will result in these enemies getting a strangle hold upon us. Our race may recover, but many millions will perish of starvation and insect-borne diseases. The fecundity of the insect is tremendous, and a little weakening in our offensive will bring disaster, sure and certain, upon our race. The insects are fighting for possession of the earth. It is now a case of Insect versus Man. All other forms of life have been subdued, but the insect still holds its ground, and ever and anon gains considerable advantages over us. The present production of food is not sufficient for the needs of our race. Millions live in a condition of semi-starvation ; hosts actually die of hunger. With the increase of the world's population, we must have a corresponding increase in food production. By subduing the insects and keeping them in subjection we can provide food in plenty for every human being. At present a large percentage of the world's food supply is devoured by hungry insects. In our struggle for food and life we have two great aids. Birds stand in the front rank as our allies, and cannibal insects come second in usefulness. We cannot stem the assaults of our enemies with viii PREFACE poison sprays and other artificial appliances, supple- mented by useful carnivorous and parasitic insects. The birds alone can turn the scale in our favour. The principal object of this book is to endeavour to show the extent of the depredations of insects, and the usefulness, nay, the necessity of birds in our fight for supremacy against the greatest enemy of the human race — the insects and allied forms of life. In the compilation of these books I was helped by valuable field observations on the nesting habits and diet of birds by my son Vivian ; also by my son Desmond with many pen and ink sketches. THE AUTHOR. Port Elizabeth, 1923. IX NOTE The author and publishers both wish to gratefully acknowledge their obligations to Messrs Bernard Quaritch Ltd. for permission to reproduce the coloured plates in Layard and Sharpe's " Birds of South Africa." Plate L, Crested Eagle (Hieraactus ayresi), is reproduced from The Ibis by kind permission of the Committee of the British Ornithologists' Union. To Edward Howe Forbush, the Ornithologist of the Massachusetts State Board of Agriculture and the Editor of Bird Notes and News, for literature. Also for notes and extracts taken from the book " Birds of South Africa " by Layard and Sharpe, and " The Fauna of South Africa " (Birds) by Stark and Sclater. XI ILLUSTRATIONS VOLUME I. COLOURED PLATES I. Crested Eagle {Hieraaetus ayresi) From The Ibis. April 191 9. Frontispiece II. (1) White-flanked Flycatcher \ {Pachyprora molitor) \ to face page 10 (2) Pririt Flycatcher {Packyprora pririt) ) III. Bakbakiri Shrike (Lam'arius gutturalis) - IV. Orange-breasted Rock-Jumper ( Chcrtops aurantiacus) V. (1) GREEN COUCAL (Ceuthmochares anstralis) \ (2) West African Coucal (Ceut/unochares (pre us) J 76 154 222 BLACK AND WHITE PLATES The Author (1922) Nomenclature of the Bird's Feathers Beaks and their Uses VI facing p. 1 4 12 18 24 Xlll ILLUSTRATIONS PAGE (i) The Crombec Warbler's Nest ; (2) Bakbakiri Shrike, Nest, and Eggs ; (3) The Little White-Eye's Nest ; (4) The Large Yellow Seed-Eater's Nest ; (5) The Crowned Lapwing and Eggs ; (6) The Thick-Knee's Nest - 35 ([) Nest of Silent Bush Robin, or Fiskal Flycatcher ; (2) Nest of the Cape or Olivaceous Thrush ; (3) Nest of Cape Robin Chat; (4) Nest of Bar -Throated Warbler; (5) Cape Bulbul, with Egg of Cuckoo ; (6) Nest of Cape Canary - - 39 (t) Secretary Bird ; (2) White Stork - - 43 Nests of (1) Pink-Billed Weaver ; (2) Black and Yellow Bishop Bird ; (3) Scaly- Feathered Weaver ; (4) Black-Headed Oriole - - 49 Nests and Eggs of (1) The Drongo ; (2) Turtle Dove ; (3) Tchagra Bush Shrike ; (4) Bakbakiri Shrike ; (5) Cape Rock Thrush - 55 Black and Grey Cuckoo at the Nest of a Cape Bulbul - - 59 Nest of a Hammerkop, or Mudlark - - 63 (1) Pair of Paradise Flycatchers and Nest; (2) Red-Necked Bush Pheasant's Eggs ; (3) Nest-Hole of a Woodpecker 69 Nests of (1) Smith's Weaver Bird ; (2) With Unusually Long- Entrance Tube ; (3) Spotted-Back- Weaver ; (4) Yellow Weaver ------- 72 Nests of (1) Burchell's Coucal, or Vlei Loerie ; (2) Honey- sucker ; (3) Cape Longclaw ; (4) Quail ; (5) Stanley Bustard, or Veld Paauw - - 79 Eggs of a Moth on a Leaf - - 87 Life-History of a Moth - - 93 The Bagworm - - - 98 Bird Shelters, etc. - - - 105 Boomslang, or Tree Snake - - 109 (1) Secretary Bird in the Act of Killing a Snake ; (2) Nest of a Black Crow on the Top of a Telegraph Pole - - 115 (1) Mountain Partridge ; (2) Red-Necked Pheasant - 119 White Egret 124 xiv ILLUSTRATIONS ['AGE (i) A Domestic Fowl Half Skeletonised; (2) Skeleton of an Abnormal Domestic Duck - -129 Nesting Boxes from Old Tins, etc. 133 Various Types of Bird Nesting- Boxes 137 Tree-Hole and Walden Boxes - 143 Cat-Proof Fence and other Devices for Protecting Birds 148 Various Devices for Protection from Climbing Cats, etc. 153 Nesting Boxes in Position - 1 59 The Black Crow, or South African Rook - 162 (1) The Wattled Starling, or Little Locust Bird ; (2) The Black- Vented Glossy Starling - - - 168 (1) Burchell's Glossy Starling ; (2) Tied Starling - 173 Glossy Starling - - 178 (1) The Red-Wing Starling, Spreeuw, or Rooivlerk ; (2) Verreaux's Glossy Starling - - 182 (1) Black-Headed Oriole ; (2) Golden Oriole - 187 (1) Masked Weaver Bird ; (2) Black Widow Finch ; (3) Paradise Widow Bird ; (4) Pin-Tailed Widow Bird - 193 The Gape of the Night Jar - - - 195 (1) Common Waxbill, or Rooibeckie ; (2) South African Ruddy Waxbill, or Robin ; (3) The Dainty Scaly-Feathered Weaver - - - 198 (1) Dufresne's Waxbill, or See-See; (2) Orange-Breasted Waxbill, or Zebra Waxbill ; (3) Blue-Breasted Waxbill ; (4) Grenadine, or Violet-Ear Waxbill - - - 204 (1) Taha Bishop Bird ; (2) Black and Yellow Bishop Bird, or Yellow Kafir Fink ; (3) Black and Yellow Bishop Bird, Nuptial Plumage ; (4) Paradise Widow Bird 207 (1) SundevalFs Seed-Eater; (2) Streaky-Headed Seed-Eater: (3) Seed-Eater; (4) Cape Canary - - 213 (1) Capped Wheatear, or Schaap-Wachter ; (2) The Large Yellow Seed-Eater ; (3) The Golden-Breasted Bunting, or Streep- Kopje - - - - - - 216 (1) The Cinnamon-Backed Pipit; (2) Orange-Throated Lark, Longclaw, Cape Lark or Cut-Throat Lark ; (3) Red- Capped Lark (Inkelde Leeuwerk) - - - 221 XV ILLUSTRATIONS (i) Rufous Long-Billed Lark ; (2) Bar-Tailed Lark, or Clapart Leeuwerk - Cape Wagtail (1) Ray's Yellow Wagtail ; (2) African Pied Wagtail - (1) Cape Long-Tailed Sugar Bird ; (2) The Orange-Breasted Sun Bird ; (3) Greater Double-Collared Sun Bird (1) The Black Sun Bird; (2) Immature Male; (3) Mouse- Coloured Sun Bird ..... (1) The Cock Malachite Sun Bird; (2) The Female; (3) Scarlet-Chested Sun Bird - • A Fiscal Shrike, or Butcher Bird Fiscal Shrike, or Butcher Bird, with Nest and Eggs (1) The Black-Headed Bush Shrike; (2) Four-Coloured Bush Shrike ; (3) The Black and Crimson Shrike (1) The Long-Tailed Shrike; (2) The Bakbakiri Bush Shrike, or Cock-a-Vick ------ (1) Lesser Puff-Back, or Snowball Shrike ; (2) Greater Puff- Back Shrike, or Bonte Canaribyter (1) Grey Cuckoo Shrike, or Blaauw Katakure ; (2) Black Cuckoo Shrike ; (3) Southern Grey-Headed Bush Shrike XVI ^15 V^vSj^ 1. Crown. 11 Primaries. 21. Secondary coverts 2. Ear coverts. 12. Tail. 22. Median coverts. B. Hinder crown. 13. Under tail coverts. 23.' Lesser coverts. 4. Nape. 14. Vent. 24. Chest. 5. Hinci neck. 15. Foot. 25. Throat. 6. Mantle. 16. Tarsus. 26. Cheek. 7. Scapulars. 17. Thigh. 27. Chin. 8. Upper back. 18. Belly. 28. Genys. 9. Lower back. 19. Primary covert. 29. Culmen. 0. Secondaries. 20. Bastard wing. 30. Lores. Vol. I. ! To face page THE NATURAL HISTORY OF SOUTH AFRICA BIRDS "Think of your woods and orchards without birds ! Of empty nests that cling to boughs and beams ! As in an idiot's brain, remembered words Hang empty 'mid the cobwebs of his dreams ! While bleat of flocks or bellowing of herds Make up for the lost music when your teams Drag home the stingy harvest, and no more The feathered gleaners follow to your door." Longfellow. In the economy of Nature birds take a very consider- able part. Throughout all forms of life, from the humble creatures which are mere spots of transparent jelly, upwards all along the line to the highly evolved sub-human animals, Nature guards against the undue multiplication of species so that those forms of life which increase most rapidly have the largest number of enemies. Man fondly nurses the erroneous belief that he is the dominant animal upon earth. True, he has acquired a considerable measure of power and domi- nance, and persecutes and slays the lower animal life VOL. i. i i NATURAL HISTORY OF SOUTH AFRICA around him in a most brutal and unreasoning manner. Knowing no better, he destroys friend and foe alike. The real lords and masters of the world are the insects. With his many inventions, man wages a constant warfare upon the insect army which is seek- ing to drive him from the face of the earth. The numerous sub-human allies which the Creator has provided to aid him in his struggle for life are doing most of the fighting. Man's puny attacks do about as much damage to the insect enemy as shooting into a flight of migratory locusts with a rifle. Insects breed with astounding rapidity, and when from any cause their natural enemies are diminished in numbers, they immediately increase and become a plague. Over a million species of insects are already known, and new kinds are being discovered every day. These vast, uncountable hordes live upon vegetable and animal life. If we had the power to exterminate all the natural enemies of insects, and exercised that power to the full, then, within a period of five years, the insects would have swept the entire world bare of vegetable life — yes, as bare as the Sahara Desert. Every living creature is dependent either directly or indirectly on plant life, and the world would, without it, become a barren, uninhabitable waste. Man is indeed a provokingly unreasoning animal, for he, as a general rule, does not avail himself as he should of the knowledge of his men of science. To bring about most of the reforms for the protection and general betterment of the individual and the race, it is usually 2 BIRDS necessary to employ compulsion in the form of legisla- tion. Until the education of children takes a more practical turn, the human race will continue to blunder on and evolve to higher intellectual and spiritual planes at an exasperatingly slow pace. Insects have hosts of enemies other than our feathered allies ; but if we exterminated the native birds, the human population of South Africa would, in a few years, be reduced to a condition of starvation. The fecundity of many species of insects is staggering to the imagination of even an astronomer. For in- stance, one hop aphis, if allowed to breed unchecked, would develop thirteen generations in a single year, and at the end of the twelfth generation would have bred an army of ten sixtillions of aphides. Forbush has worked it out, and says if this uncount- able army was marshalled in line ten to the inch, it would extend as far as the great star Sirius, which is so far away that if a man could travel at the rate of light, which is 186,000 miles per second, the journey from earth would take him eight years. Kirtland, too, has carefully worked out the rate of breeding of the gypsy moth, and states that it a pair of these moths and their progeny were allowed to breed unchecked for eight years, they would strip the entire United States of America of vegetation. A Colorado beetle or potato bug would, if un- checked, multiply in one season to the number of 60,000,000. It can thus be realised by even the dullest intellect, that at this rate of multiplication the Colorado beetle would very quickly exterminate the 3 BEAKS AND THEIR USES. BEAKS AND THEIR USES. 1. The Black Sunbird (Cinnyris amethystinus) has a beak suited for sipping nectar from flowers. 2. With his wide-gaped jaws the Swift (Cypselus apiis) captures insects in the air. :>. With a sweeping side movement, the Whimbrel {Xu?ne>icius p/iaopus) sifts the mud of lagoons for aquatic forms of life on which it lives. 4. The European Roller {Coracias garrulus) is provided with a specially strong weapon for killing grasshoppers and beetles. 5. Meyer's Parrot (Pceocephalus Meyeri) possesses a tool for digging nest holes in trees, for breaking up hard fruits, and cracking nuts and berries. 6. The Black-Collared Barbet (Lybius torquatus) uses his beak for nipping the berries and wild fruits from forest trees. 7. The Kakelaar (Trrisor viridis) uses his long curved beak for searching out insects in the bark and substance of forest trees. 8. The Hoopoe {Upupa africana) wins his living by prodding the ground for insects and their larva' which lurk underground. NATURAL HISTORY OF SOUTH AFRICA potato plant. The migratory locust, for instance, if allowed to lay its eggs and breed unchecked, would in a few years make farming an impossibility. Aye ! it would sweep the entire country of vegetation and convert it into a barren, useless desert. The tick is another insect scourge ; it is parasitic, and feeds on the blood of animals. It reduces the condition of stock animals more or less seriously, and is an active agent in carrying disease germs from one animal to another. The female tick lays from 2,000 to 18,000 eggs, according to the species. If all our tick-eating birds were destroyed and dipping suspended, these terrible pests would kill off every stock animal in the country. On taking up my residence in a house at Port Elizabeth, surrounded by large grounds and gardens, I was amazed to find the place a paradise of insect life. The flowers and vegetables which I planted were completely eaten off before reaching maturity. Prior to my tenancy, the house was uninhabited for two years, and boys had been in the habit of roaming at will about the premises with catapults and air-guns, murdering any and every bird they could find. Others searched the bushes for nests, intent on robbing them of their contents. The place became a sanctuary for birds on my advent, and within a year the insect army of occupation was annihilated. Insects not only breed with astounding and dis- concerting rapidity, but their powers of eating are, if anything, still more amazing. A caterpillar will 6 BIRDS eat three times its own weight of vegetation every day. This, on first thoughts, does not seem so very astonish- ing, but if applied, for instance, to a horse, it would mean the animal would require at least a ton of food every twenty-four hours to satisfy its hunger and provide for its growth. A man weighing 150 lbs., eating only twice his own weight of food, would need a daily ration of 300 lbs. The appetite of the vegetation-eating caterpillar is, however, dwarfed into com- parative nothingness by the colossal eating powers of some of the carnivorous larvae. One of them, for instance, will devour 200 times its original weight in twenty-four hours. If a large caterpillar eats an ounce of vegetation a day, it can well be imagined the number of tons, of produce the offspring of a few moths or butterflies would devour in a season if every egg was allowed to hatch and the caterpillar permitted to live its allotted span of life. The actual bulk of vegetation devoured is not the only mischief wrought by insects. Hosts of species of insects pass the first or larval stage of their lives underground, and feed on roots, and consequently destroy the life of the young plant. Man with all his weapons of defence could not withstand the onslaught of the insect hosts a single year without the aid of the allies which he ignorantly 7 The Caterpillar takes a heavy toll of the farmers' crops. NATURAL HISTORY OF SOUTH AFRICA persecutes, and in the front rank of which are the birds. Yet, strange to say, Man, who claims by reason of his mental superiority to be the Lord of the earth, is either directly or indirectly destroying the creatures which the all-wise Creator has provided to help him in his struggle for food and life against the most formidable of his enemies — the insects and their near relations, which, although not true insects in a scientific sense, are popularly grouped as such. " What ! would you rather see the incessant stir Of insects in the windrows of the hay, And hear the locust and the grasshopper Their melancholy hurdy-gurdies play ? Is this more pleasant to you than the whirr Of meadow lark and her sweet roundelay, Or twitter of little field-fares, as you take Your nooning in the shade of bush and brake ? " Longfellow. Man, who claims to be guided by an educated intellect, deliberately attacks his allies instead of acting in co-operation with and safeguarding them in every way in his power. Lack of the right kind of knowledge is undoubtedly the tap root of the evil. Boys and girls leave school knowing little or nothing at all about the Natural History of the country in which they dwell. A few pick up some knowledge of the ways and habits of the lower forms of life, but the vast majority go forth to persecute and slay the creatures which are striving to make the lot of man a brighter and happier one. Nay, more ! they are making it BIRDS impossible for him to live and enjoy the fruits of his toil. In his orchard and garden man can, to a limited extent, keep the insects in check with various insecti- cides, which are after all unnatural and expensive, and often dangerous. Even with these aids he is fre- quently overwhelmed. When his crops, his pasturage, and his forests are invaded by ravening hordes of insects, his offensive collapses and his defences are demolished. He sits in his home, chafes, blames Providence, the Government, or thinks the visitation a Divine punishment for his sins. In this latter The Slug is a garden pest, and birds are its enemies. surmise he is not far wrong, for it truly is a chastise- ment for his sins and those of his neighbours in allow- ing his friends and allies — the native birds — to be perse- cuted, done to death, or driven to seek less dangerous hunting grounds. Insects are attacked by parasites, diseases, and fungi, and some kinds prey upon others ; but all these natural checks, with the fight put up by man, are altogether and entirely inadequate to prevent insects from increasing to uncountable hosts and sweeping all vegetable life from the face of the earth, except by the aid of his allies the birds. Insects are preyed upon by some species of small mammals; by lizards, toads, and other reptiles and 9 NATURAL HISTORY OF SOUTH AFRICA batrachians ; but their arch-enemy — the foe which keeps them in check — is our feathered ally, the bird. Destroy the birds, and all the other foes of insects could not prevent them from carrying all before them by sheer force of numbers. Why are birds indispensable allies in our desperate efforts to stem the advance of the insect Hun ? Because the food of the vast majority consists of insects. The seed-eating species, with but few excep- tions, feed their young solely on an insect diet. Is it then a matter for wonder that outraged Nature scourges us so severely ? We deserve it, surely. There are sins of omission and commission; both are equally far-reaching in their results. We are hypnotised by the belief that it is necessary to have our children's minds filled with what might be termed " the ballast of the ages." There is often no time left in the child's life, or no desire on the part of the parents, to have it taught those things which are necessary to enable it to develop into a useful and progressive citizen of the State, and to pilot its way through life with the minimum of mishaps and disasters. To study Nature is to study the works of God. It is eminently practical in every sense of the word, and is also a powerful factor in the awakening of the moral and spiritual nature of man. Why have so many of the human race degenerated into mere money-making machines, with intervals of leisure for the gratification of their animal passions and desires ? Chiefly because their minds have never been awakened to a realisation of the fairy- 10 Plate II. — (1) White-flanked Flycatcher {Pachyprora monitor). (2) Pririt Flycatcher {Pachyprora print) . The mission of the Flycatcher is to capture insects in the air BIRDS land around them opened up by a study of Natural History. What is sport to man is often death or persecution to some creature which, more likely than not, is a valuable ally, but he knows it not. Since the inven- tion of the gun, man has been engaged upon the deliberate and wanton upsetting of the balance of Nature. He ventures where angels fear to tread, not because of his bravery, but by reason of his want of knowledge. Knowing no better, he allows his children to wantonly maim and kill the wild birds, and rob their nests. He hands down to them erroneous, mischievous, and harmful beliefs in regard to the sub-human inhabitants of veld, mountain, forest, and stream, which results in the persecution of the creatures which are helping him in his battle for life. For instance, it is popularly believed the harmless little geko lizard is venomous. The result is, this highly useful little insect-eater is killed at sight. So much for the wisdom of man. Conversing with a lady school teacher from an up-country dorp, I expressed regret at the profound ignorance of our children on the ways and habits of the wild creatures of this country. She admitted the fact, but was eager to inform me she encouraged the boys in the school to learn Natural History. One boy, she declared, had made a wonderful collection of birds' skulls. ' How did he procure the skulls ? " I queried. ' He went out excursions and killed the birds with a shot- gun," she replied. " Other boys," she declared with pride, " collected birds' eggs, and had really lovely 1 1 BEAKS AND THEIR USES. 1. The Natal Knorhaan {Otis barrowii) digs among the roots of grasses and shrubs on the veld for insects and their larvae. 2. The Flamingo {Pkcenicopterus roseus) has a bill wonderfully adapted for digging and sifting the slime and mud of Lagoons for Crustacea and mollusca. 3. The Cape Shoveller Duck {Spatula capensis) shovels and sifts the mud and aquatic vegetation for snails, which are the hosts of the liver fluke in sheep and Bilharzia in man. 4. The Ethiopian Snipe {Gallinago nigripennis) bores into the soft mud of marshes for worms and aquatic insects. 5. The Curlew {Numenius arquatus) probes in the mud for its food, which consists of the various small creatures which live therein. 13 NATURAL HISTORY OF SOUTH AFRICA collections." " I suppose they took the entire clutch of eggs every time ? " I asked. " Yes ! oh, yes ! They were so eager, you know, and so jealous lest their rivals should get more eggs than they." In South Africa there are about 920 species and subspecies of birds. Of this great host not more than twenty species can be said to be harmful to man without sufficient redeeming qualities, from an economic point of view, to justify their preservation. There are some which, when judged from a broad standpoint, are beneficial to man as a whole, but which are a pest to individuals such as fruit growers, stock farmers, and grain- growing farmers. The colies or muis vogels and the bulbuls, for instance, are foes to the fruit farmers ; the larger birds of prey can expect no mercy from stock and poultry farmers ; and the " vinks " are a pest to the grain grower. However, each family of birds will be subsequently dealt with from an economic point of view, so that we may be fully acquainted with the various services rendered us by them, and the amount of payment some of them take from us for services rendered. It will then rest with us to judge whether any of them are taking too heavy a wage in fruit, corn, bees, poultry, or young stock for the work they perform. One thing is beyond dispute and must be conceded by every reasoning individual, viz., that to kill or other- 14 ('(invert all your old tin cans into bird-nest- ing boxes. BIRDS wise persecute the birds which are helping us all the time in our fight against the voracious hordes of insects, is a deliberate crime to posterity and a grave moral wrong. Is a man morally justified in persecuting, maiming, or killing useful birds because no man-made law is violated ? If we saw a big, strong man persecuting or killing a helpless child we should be aflame with anger or righteous indignation. On the contrary, when we see a man deliberately shoot a helpless little bird friend, we pass by and heed not. The life of a useful insectivorous bird is, or should be, as sacred as the life of a child. It is deplorable, but nevertheless true, that a large percentage of people are kept in the path of righteous- ness solely by fear of consequences; hence the necessity for good and sound legislation and machinery for the enforcement of the laws, until such time as the race, as a whole, have advanced to a higher moral and spiritual plane. Before interfering with the marvellous and beautiful scheme of Nature, it behoves man to make careful study and not allow himself to be guided and dominated by his passions, inclinations, and pre- judices. After carefully weighing the evidence, should it be found that any bird, animal, or reptile is, by its actions, hampering the advancement of the human race, then, and not till then, are we morally justified in removing it from the world of the living. When any creature is destroyed which acts as a check on another, the inevitable result is a multiplication of the latter. The destruction of a pair of breeding starlings, l5 NATURAL HISTORY OF SOUTH AFRICA for instance, which involves the death of four to six nestling birds, means the increase of a minimum of 30,000 caterpillars and grubs within six weeks. These caterpillars soon reach the adult condition, change into chrysalides, and emerge as moths, butterflies, and beetles. Each of the females lays thousands of eggs, which bring forth a vast and destructive army of larvae, and from the 30,000 caterpillars and grubs there will arise within a few short months an un- countable host. All because of the thoughtless or wanton destruction of a pair of breeding insectivorous birds. Many years ago the English press gave colour to the erroneous and stupid belief that owls were birds of evil omen, and that they were destroyers of chickens and useful birds. Some of the farmers, believing these false statements, mercilessly persecuted the owls, and the survivors retreated to the wilds. The following season loud and bitter were the com- plaints about the damage done to the crops and young poultry by rats and mice. The second season proved still worse, and many a farmer was ruined. There has been much controversy as to whether the English sparrow (Passer domestkus) does more harm than good. The chief indictment is that it eats the buds of fruit trees, with a consequent serious diminution of the subsequent crop. There is no doubt at all when this species of bird increases abnormally in numbers it does become a pest, as is the case with some of the South African seed-eating birds, whose ranks have to be thinned when their attacks assume formidable 16 BIRDS proportions. The thinning process, however, should only be embarked upon when it is absolutely certain the birds are doing more harm than good, for it must be remembered abnormal eruptions of insects cause the birds to concentrate. The chief concern of birds during the spring and early summer is to find the most favourable localities for rearing their families. The young are fed on an insect diet and, unless insects are abundant, the young birds, or a large proportion of them, will perish. Some years ago the farmers in Hungary, incensed by the damage done by sparrows to budding fruit trees, and actuated largely by superstition, prejudice, and ignorance, made war on this species of bird and nearly exterminated it. Within the short period of five years the land was in the grip of the insect Huns. The farmers became panic-stricken, for utter ruination stared them in the face. Fortunately knowledge, and with it repentance in this instance, did not come too late. The sparrow came into his own again, and the country was saved. James Buckland, whose life's work has been devoted to spreading knowledge in regard to the economic value of birds, relates several instances of the serious consequences attendant on the indis- criminate destruction of wild birds, which are briefly as follows: — In the island of Bourbon the people, impelled by erroneous beliefs and superstition, set a price on the martin's head. The birds were nearly annihilated, and, as a consequence, grasshoppers overspread the vol. i. 17 2 BEAKS AND THEIR USES. Nature provides the Hammerkop {Scopus umbrella) with an efficient tool for snapping up frogs and other aquatic creatures. The Crowned Hornbill {Lophoceros melanoleucus) uses the only tool Nature gives him to pick fruit and berries, and to plaster up the entrance hole of his nest. The Jackal Buzzard {Buteo jackal) slays and rends rats, snakes, birds, and small mammals with his powerful curved beak. With its hard pick-like bill the Black Crow (Corvus capensis) digs up the soil for root-eating grubs. 19 NATURAL HISTORY OF SOUTH AFRICA island and the people were frantic with fear lest they should perish. It was indeed fortunate for those foolish people the martin was not quite beyond recall. Every encouragement was given these birds, and swift fell the punishment on anyone who persecuted them. The martins, finding an abundant food supply, increased rapidly in numbers, and the devastating hordes of grasshoppers were destroyed. In the year i 8 6 1 the harvests of France were very poor, and the Minister for Agriculture appointed a Commission to investigate the cause of this alarming diminution in the crops throughout the country. The Commission attributed the unusually poor return to the ravages of insects. It seems the birds which had been keeping the insects in check had been shot, snared, and trapped in such numbers that the survivors were unable to maintain the balance of Nature, and the insects multiplied and overspread the land to scourge man for his ignorance and folly. This Commission reported that they could suggest no other remedy against the ravages of insects than prompt and energetic legislation to prevent the destruction of birds. For some years prior to 1877 the farmers of Nebraska were in the habit of poisoning the black- birds during the spring and autumn around the cornfields, because they believed this bird was damag- ing the crops, particularly the wheat. Large numbers of prairie chicken, quail, plover, and various other species of eminently useful birds were destroyed at the same time by eating the poisoned grain. Again 20 BIRDS outraged Nature arose and smote those unreasoning farmers in the form of countless hosts of locusts which swept the land bare of crops and pasturage. " As ye sow, so shall ye reap." In 1895, in the region of Ekaterinburg, in Russian Siberia, two species of cut-worms and about ten species of locusts devastated the countryside, and the farmers were in despair, for there was famine throughout the land. The local Society of Natural Sciences carefully investigated the cause, and declared it to be due to the almost complete destruction of the native birds, which had been killed and their plumage sent abroad to gratify women's vanity. The tick is a living, ever-present nightmare to the farmer. Knowing its disease-carrying propensities, he never can tell when it may infect his flocks and herds with a disease that will destroy, perchance, the majority of them. The tick is the most formidable enemy with which the stock farmer has to contend. With but few exceptions the ground birds feed more or less on ticks. Some species of birds, such as the tick birds {Buphagd), take them direct from the cattle, but the majority feed on them upon the herbage and ground. When a female tick has gorged herself with blood, she drops from her host and crawls away to seek a suitable place in which to deposit her eggs. These blood-gorged ticks are eagerly sought after by birds, which frequent the grazing grounds of cattle to seek for them. Every female tick so destroyed means the destruc- tion of thousands of eggs. For instance a quail, 21 NATURAL HISTORY OF SOUTH AFRICA partridge, guinea-fowl, lark, rail, starling, or any one of the many tick-devouring birds, in a single season is capable of killing vast swarms of ticks directly and indirectly. I have found as many as fifty gorged female ticks in the crop of a single cattle egret {Bubulcus ibis). Taking the minimum number of eggs laid by one of these ticks at 2,000, we have the tremendous total of 100,000. In the crop of a quail, eight of these mature female ticks were found. This, multiplied by 2,000, makes a total of 16,000 ticks accounted for by one bird in a day ; or, during the course of the spring and summer, the colossal number of 3,000,000 ticks would have been accounted for by one quail. Twelve crowned lapwings (Stephanibyx coronatus) or kiewitjes, as they are popularly termed, were shot during December on a cattle-frequented veld. Nine of these contained an average of five blue female ticks distended with blood or eggs. Again, taking the minimum number of eggs laid by each tick at 2,000, we have a total of 10,000 ticks accounted for by each bird in one day. In three months these birds, eating female ticks at the rate of five per day, would account for 1,000,000. If these had survived, and taking half their number to be females, the following season they would have totalled something like 6,000,000,000. Yet we find otherwise reasonable, intelligent, humane, and unselfish men deliberately slaying these tick-destroying birds for sport, and for the pot, or to obtain a few paltry pence for their plumage. We also 22 BIRDS find otherwise kind, loving, gentle, and affectionate women deliberately encouraging the cold - blooded murder of these valuable allies of our race by adorning their headgear with their plumage. Any woman wearing this badge of cruelty should be regarded as a pariah, and shunned by all humane people. The appalling destruction of insect-eating birds in Jamaica, chiefly to supply the demands of the millinery trade, resulted in such a plague of grass ticks, flies, and mosquitoes, that all breeds of cattle, with the exception of Indian cattle, were exter- minated, and the death-rate amongst other domestic animals and the human population was considerably raised. In French West Africa the unrestricted shooting and trapping of the guinea-fowl resulted in epidemics of germ diseases amongst the native tribes, and the destruction of crops by beetles, cut-worms, grubs, and locusts. The wholesale destruction of native birds is followed by disaster to man as surely as day follows night. Man idly, wilfully, or ignorantly brings about the cause, and .he suffers the effect to the full. To-day he has men of science who are capable of guiding and teaching him how to avoid most of the set-backs he gets in his journey through life, but he heeds them not. When they cry aloud in protest at his deeds of vandal- ism, he turns a deaf ear ; or when they essay to spread the seed of knowledge in writings, or by means of lectures, those whom they seek to benefit actually put 23 BEAKS AND THEIR USES. 24 BEAKS AND THEIR USES. 1. The European Bee-Eater (A/crops apiaster) has an instrument perfectly adapted for catching bees on the wing and crushing them to death without running any risks. 2. The Noisy Frankolin or Bush Pheasant {Frankolinus capensis) grubs in the loose loam of the bushlands for insects which pass the larval phase of their lives there. 3. The Half-Collared Kingfisher {Alccdo semitorquatus) gets his living by diving for fishes. 4. The Cardinal Woodpecker {Dendropicus cardinalis) pecks out the decayed wood of trees in search of the larva^ of wood-boring beetles, and to make nest holes in which his family are reared. 5. The Greater Puff Back Shrike {Dryoscopus ferrugineus) crushes beetles with his short strong beak. 6. The Paradise Flycatcher {Terpsiphone perspicillatd) snaps up insects on the wing and crushes them to death. 7. The Wattled Starling or Locust Bird {Dilophus carunculatus) captures locusts in the air and, with a snap, he shears off the victim's wings and legs. 8. The Noisy Robin Chat or Piet-myn-vrouw (Cossy/ra bico/or) slays the insects which lurk in the trees and issue forth before sunrise and after sundown. NATURAL HISTORY OF SOUTH AFRICA obstacles in their way. When the Mormons first settled in Utah, hordes of black crickets swarmed down from the mountains and swept off their crops to the last seedling. What were vast fields of wheat in the morning were as bare as freshly-harrowed land in the evening. The first year's crop was a total failure. The second year's crop promised to yield a huge harvest, for the weather conditions were ideal, but the cricket host again swarmed down and laid the land bare, leaving not a blade of wheat. The Mormons became panic-stricken, for they were on the brink of starvation. Suddenly, as though sent from heaven, hundreds of thousands of Franklin's gull appeared and devoured the crickets, thus saving the settlers from extinction. Finding ample food for its needs, this species of gull has been a regular visitor to Utah, and continues to keep the crickets in check. It is, consequently, held sacred by the inhabitants, who have erected a monument to it in Salt Lake City, so that posterity may know these gulls were, and are, keeping the insect hosts in check, and thus preserving the State from the financial ruin which would otherwise overtake it. Every country has its hosts of vegetation-devouring insects, and these are kept in check by the native birds. Occasionally they gain the upper hand in one or more localities, but the birds soon discover the fact, and flock to the threatened area and quickly reduce the ranks of the invading host. Should the birds increase unduly in numbers, there is a dearth of insect food, resulting in the migration or dying off of considerable numbers of birds. This decrease in birds again gives 26 BIRDS the insects a chance to increase, and so the pendulum of Nature swings to and fro until man spreads over the land and begins tilling the soil. Finding certain species of birds are taking some slight payment in grain or fruit for their immensely valuable services, he foolishly begins a war of extermination upon birds generally. Apart from any damage the birds may do, it is a practice common in all newly-developed countries for colonists to destroy the native birds for the pot, and often for no other reason than to gratify the brutal desire to kill, which is inherited from our remote bar- barian cave-dwelling ancestors. Nay ! we do our primitive ancestors a grievous wrong in mak- ing this comparison. They hunted and killed animals and birds for food and raiment, impelled by dire necessity. We, on the contrary, kill for the mere lust of killing. When a boy or youth acquires a gun, he invariably sallies forth seeking " something to kill." He knows no better, for his parents and teachers have not taught him that animals and birds are warm-blooded creatures with nervous systems as sensitive to pain as ours, and that they love, mate, rear families, and live lives of greater wisdom and usefulness than many of the men who foolishly believe they have the moral right to persecute and murder them at will. 27 The Caterpillar defoliates our shrubs and trees. The bird is its enemy. NATURAL HISTORY OF SOUTH AFRICA This thoughtless and foolhardy practice of killing the native birds brings retribution sharp and severe upon the pioneer. The swarms of insects, finding the produce of the cultivated fields more succulent fare than the native vegetation to which they were accustomed, abandon the latter and invade the former. The new diet being so abundant and nourishing, they multiply with alarming rapidity. Their rapid increase is powerfully favoured, and indeed made easy, owing to the farmer, his sons, and employees having persecuted the birds so relentlessly that the survivors had fled in terror to the wilds. A servant is surely worthy his hire. Apparently this is not so with our good and useful helpers — the birds. Those which are purely insectivorous and take no payment at all are killed, trapped, and their homes robbed of eggs and young. The species which take a little payment in the shape of corn or fruit for their heavy labours on behalf of man, are hated and hunted relentlessly. Man is, and always has been, apt to observe superficially and arrive at erroneous conclusions. '* You call them thieves and pillagers ; but know They are the winged wardens of your farms, Who from the corn-fields drive the insidious foe, And from your harvests keep a hundred harms. Even the blackest of them all — the crow — Renders good service as your man-at-arms, Crushing the beetle in his coat of mail, And crying havoc on the slug and snail." Longfellow. 28 BIRDS The history of man and his attitude to wild birds in every country in which he has migrated with his fire-arms is an example. We have a convincing instance, in the records of the pioneer farmers of New Zealand, of the terrible damage which a single species of caterpillar inflicted upon them. When they began to cultivate the virgin soil on an extensive scale they, as is usual with their kind, killed and allowed their boys to amuse themselves by killing and terrorising the native birds. A caterpillar which had hitherto struggled hard for a living on native vegetation, and had been attacked con- stantly by hungry, watchful birds, began to invade the cultivated fields from which the birds had been driven. To the consternation of the farmers, it multiplied as if by magic. It swarmed in uncountable hosts and spread over the land. Beautiful green fields of wheat, miles in extent, became brown with the hue of this destructive little creature. Nothing could stop its advance. It became a blasting army. Thousands of cattle and sheep were driven to and fro over them, to no purpose. Horse rollers, steam rollers, and fire were employed as weapons. Deep trenches of great extent were dug and covered over when full of cater- pillars. All human efforts were unavailing. No apparent impression was made on this mighty insect host. Railway trains were held up. The engineers could not plough their way through the overwhelming hordes of caterpillars. Man was hopelessly defeated — and by a caterpillar. It became apparent that the colonisation of the 29 BEAKS AND THEIR USES. 1. The Hadada Ibis {Hagedashia hagedash) uses its beak like we do a piek to unearth insects and their larvae on which it feeds. 2. The African Spoonbill {Platalea alba) uses its flat, spoon-like beak to explore for shellfish, crabs, and worms in the mud, and also for snapping up small fishes and aquatic insects. 3. The Grey Heron {Ardea cinered) stands immovable in the water and impales the fish and frogs which come within striking distance. 4. The Cormorant {Phalacrocorax lucidus) pursues fishes under water in the ocean and tidal rivers, and kills them with the sharp point of his powerful beak. 3' NATURAL HISTORY OF SOUTH AFRICA country could not be proceeded with. All man's efforts to check the conquering host proved as effective as a child's bank of sand erected on the seashore to stem the incoming tide. The one and only hope of salvation lay with the native birds. The chastened farmers, repenting of their folly, did their utmost to encourage the birds to return. The birds had, however, suffered so severely from his treachery and his murderous weapons that those which ventured on his fields fled in terror at sight of him. Until the advent of the European, the birds had lived in loving friendship with the Maoris. They now refused to be propitiated. Their experiences had made them excessively suspicious of all human-folk. As a last resource, and as a final despairing experiment, the Government introduced birds from England. The one which made itself thoroughly at home and bred most rapidly was the common house sparrow {Passer domesticus). To the help rendered by this much-despised and persecuted bird the New Zealand farmers owed their salvation. Indeed, the entire population was rescued from destitution and red ruin, for those resident in the villages and towns were dependent upon the farming community directly and indirectly for a living. The great majority of reptiles are useful allies in our war against insects, but most of them cease to feed, and hibernate during the winter months ; and even when they are abroad their needs are not large in the way of food, very little satisfying them. On the contrary, birds feed daily throughout the BIRDS year. They have a high bodily temperature and lead an active life, entailing a great expenditure of muscle and nerve energy, with a considerable loss of heat, consequently their requirements in the way of food are large. Nature has provided for this in giving the bird a strong and rapid digestion, which impels it to seek food at frequent intervals. When the parent birds have a nestful of youngsters to provide for, they are on the war-path from daylight until dusk. A pair of birds with four nestlings destroy as many insects as a dozen single birds, because the rapidly-growing fledg- lings require an abundance of food. Birds are not only formidable foes of insects, but they help very largely in keeping weeds and other forms of undesir- able vegetation in check. Also they are largely instrumental in forming forests, both by sowing tree seeds broadcast, and by protecting the growing trees against the ravages of insects. Birds which feed largely on fruit and berries do not, as a general rule, digest the seeds ; these pass through their digestive organs unchanged. On the contrary, the true seed-eating birds, which feed chiefly on the seeds of weeds, digest the seeds completely, and thus render man very valuable services. When these birds attack corn-lands in unusually large numbers, of course it lies with each farmer to use his judgment as to whether the harm they are doing is paid for in full or not by the weed seeds and insects they devour. It must be remembered that birds lay their eggs during the spring and early summer, conse- vol. i. 23 3 NATURAL HISTORY OF SOUTH AFRICA quently the young are born when the crops are green, tender, and especially attractive to caterpillars and other insects which are naturally most abundant at that time. It is, in fact, the Creator's provision against abnormal outbreaks of insect life. It means that at the very time when insects are most abundant and capable of doing the maximum amount of harm in cultivated lands, their enemies the birds begin rearing their families. This means an enormously increased consumption of insects. Numbers of birds, when adult, live mainly, and sometimes entirely, on seeds, but they feed their nestlings on caterpillars and other kinds of destructive larvae. Therefore let no man raise his hand against any of our feathered helpers without long and careful observa- tion and subsequent deliberation. The troubles of the New Zealand farmers were not at an end with the suppression of the insect peril. The Scotch thistle had been accidentally or intentionally introduced. It flourished exceedingly in its new environment, and bid fair to take possession of the entire country. The farmers utterly spent themselves in energy and money in their desperate struggle to overthrow this new enemy which threatened their very existence. They cut and burnt the plants, poured turpentine on the split stumps to kill the roots, and in other ways sought to exterminate this formidable weed. Their labours were in vain. The weed had come to stay, for the climate was genial, and strongly favoured its rapid growth. The wind carried the clouds of thistle- down far and wide and, wherever it fell, a plant sprang 34 1. The Crombec Warbler makes a nest of cobwebs. 2. Bakbakiri Shrike, or Cock-a-Vick. One of the shrikes (female) in this illustration is a partial albino. 3. The Little White-eye, or Glas-oogie, builds its nest between two twigs. 4. The Large Yellow Seed-eater's nest is usually found in a shrub. 5. The Crowned Lapwing, or Kiewitje, lays its eggs on the bare ground. 6. The Thick-knee also rears her family on the ground. 35 NATURAL HISTORY OF SOUTH AFRICA to life. The pest steadily advanced until the fields were covered with dense masses of prickly plants struggling one with another for elbow-room. Again the sparrow, which had saved the colonists from the insect invasion, came to the rescue. These birds had multiplied and overspread the country, and it was a fortunate circumstance for the farmers that they had found the country so congenial. In tens of thousands the sparrows assembled and fed upon the seeds of the thistle. Possibly an ancestral liking for it had been revived, for they abandoned all other kinds of seeds and fed exclusively on it, and the weed was vanquished ; for, aided so magnificently by their feathered allies, the farmers were able to get it under control. Man's memory for good and kind services rendered is short. Injure him in any way, however, and his memory is long — regrettably long. Man readily forgets a kindness, but an injury rankles long and persistently in his brain cells, like a noxious parasitic growth. Buckland tells us that the sparrow was regarded in his day in New Zealand " as an impudent thief, without any redeeming feature in its character." True, when the sparrow increases abnormally in numbers, it does considerable harm. The too rapid increase of the bird may be checked with advantage at times in and about settlements, but in the light of past experiences the New Zealanders would be indeed unwise ever to organise campaigns for its entire extermination. In the face of numerous and bitter complaints and revil- ings from farmers against the sparrow, there are 36 BIRDS enormous yearly harvests. In fact, New Zealand is famed throughout the world for its bountiful and unprecedented harvests of grain. The average man reasons from effect to cause in a very superficial way. The New Zealand farmer, for instance, saw the sparrow eating his grain. The bird, therefore, stood condemned. It was stealing some of his property. His mind was aflame with the desire for revenge. He did not pause to consider why he had such a heavy crop of grain. If he did he would, perchance, have realised it was because of the absence of caterpillars and noxious weeds, and that the sparrow was largely responsible for this desirable state of things. The farmer willingly pays his human labourers their hire, and carefully feeds and cares for his draught animals ; but when the bird takes five or perhaps ten per cent, of the wages it is entitled to, the short- sighted husbandman is loud in his complaints against the " impudent thefts " of his wageless labourers. Not a grain will he willingly give to the bird that has helped him. A typical instance came to my notice in Natal. A farmer of my acquaintance growled loud and long at the birds which ate his corn. He took me round a great field of ripening corn and pointed out the damage seed-eating birds had done. Yes, true enough the grain had been eaten along the fringes of the field. The evidence was conclusive to the farmer, so he, his sons, and servants made war on the birds ; they were shot, trapped, snared, and their nests destroyed. 37 NATURAL HISTORY OF SOUTH AFRICA He visited a neighbouring colony of weaver birds, and with a shot-gun demolished over a hundred hanging nests with their living contents. He gloried in the work of slaughter. He would exterminate these rascally, thieving birds. Those he did not kill fled in frenzied terror from the neighbourhood to safer hunting grounds. He kept up this campaign for two years. The third season I happened to visit him. " Well, how are the crops ? " I asked. " Miserable ; never had a poorer crop of forage, and what there is of it is mixed with weeds." The next season was worse ; the crop wasn't worth harvesting, and in disgust he turned his cattle into it. I explained to him that from the time the seed was harrowed into the soil, the insects had been busy below ground and above ground devouring the germinating corn, the roots, and the tender growing plants. The surviving plants were unable to outgrow and smother the weeds, and consequently the latter grew and reached maturity, scattering their undesirable seeds over his lands. If this farmer had confined his slaughter of the birds to reducing to normal those species which had increased abnormally, it would have been well for him. The head gardener of Sheffield Union, after thirty-five years' experience of the economic value of birds, says: — " In the trying summer of 191 1, bird-life played a very conspicuous part in our efforts to combat the ravages of insects. The birds generally known as seed-eaters became prominent insect feeders. I can say this from very personal experience, being respon- 38 1. Nest of the Silenl Hush Robin, or Fiska] Flycatcher, in a tree. 2. The nest of the Cape or Olivaceous Thrush in the fork of a tree. 3. The familiar Cape Rohin Chat builds its nest in hedges and shrubs. 4. The nest of the dainty Bar-throated Warbler in a low bush. 5. Cape Bulbul, with egg of Cuckoo. G. The neat and cosy nest of the ( lape ( )anary is placed high up in a tree 39 NATURAL HISTORY OF SOUTH AFRICA sible for the supply of 30,000 to 40,000 cabbages and cauliflowers, and tons of turnips, carrots, etc., and my experience has been that of many. There was never such a season when everything was overrun with insect filth, but in a most remarkable way seed- eating birds like linnets, sparrows, finches, and many others swarmed down upon the fields and ate up legions. But for this there must have been an absolute famine in these vegetables." It must be borne in mind that the cultivation of land -powerfully favours an eruption of insects^ and that as a consequence an unusually large number of birds are required to keep them in check. In South Africa the migratory locust does immense damage to crops, pasturage, and forests. For twenty years and more a campaign has been waged against this mighty host. The fight still proceeds with varying success. The slightest relaxation of the pressure exerted by the Agricultural Department of Government and the farmers is quickly followed by an increase in the numbers of devastating swarms of locusts. Here again we have cause and effect. Ever since the advent of the European settler to South Africa, the wild birds have been persecuted. The so-called game birds — such as guinea-fowl, partridge, and quail, the storks, cranes, herons, and ibises — have been harried, hunted, and slain. As a direct result of this steady reduction of their chief natural enemies, the locusts and grasshoppers have increased abnormally. Ave ! truly our sins have overtaken us. Money 40 BIRDS has been spent like water in the endeavour to over- throw the enemy. This locust campaign has already cost South Africa millions sterling in active war against this plague. Both in Natal and the Cape I have systematically examined the contents of the crops and stomachs of birds of different species at varying seasons. During a locust invasion I counted over 2,000 very young locusts in the crop of a white stork (Ciconia alba). Taking the number at 2,000 daily, we have 60,000 locusts disposed of in a month by a single bird. A farmer brought in some guinea-fowls he had shot during a hunt out upon the veld. In the crops of five of these I discovered nearly 100,000 locust eggs. The crop of a cattle egret {Bubulcus ibis) contained 1,200 newly hatched locusts, 400 grasshoppers, 51 ticks, 8 beetles, and 3 caterpillars. The crop of a bald ibis {Geronticus calvus) contained 3 1 winged locusts, 760 young grasshoppers, 178 insects of various kinds and their larvae. The majority of the bird enemies of locusts are migratory in their habits, and only visit South Africa from the north during the warm season of the year when insect life is abundant. Birds are highly intelligent and timid creatures, and finding South Africa so full of human enemies, they migrate to less dangerous regions, and conse- quently from year to year migratory birds visit us in ever-decreasing numbers. 4i NATURAL HISTORY OF SOUTH AFRICA For instance, the little locust bird or kliene sprinkhaanvogel (Glareola melanopterd) was to be found in large flocks every summer season in the neighbourhood of Pietermaritzburg. The youths of the city, finding the bodies of these faithful allies were good for making pies, began a campaign of extermina- tion. Within five years not a single bird of this species was to be seen, not because they had all been killed, but, finding themselves so inhospitably received, they no longer visited their old hunting grounds. The result was a plague of grasshoppers, which for many years devastated the pasture lands and made gardening almost an impossibility. The extermination or driving away of a single species of bird may, and often does, result in a plague of some sort. For instance, in Australia, grasshoppers every summer season are a menace to the farmer. Should their natural enemies, the birds, be reduced in numbers for any reason, the grasshoppers rapidly multiply and lay waste the crops and pasturage. The straw-necked ibis (Carphibis spinicollis) is the bird which is mainly responsible for holding these pests in check. A rookery of these ibises was visited, and it was estimated 200,000 birds were breeding there. Some specimens were procured, and it was ascertained by actual counting that the average contents of the crop of a single bird totalled 2,400 young grass- hoppers and some snails and caterpillars : 200,000 birds would therefore dispose of about 480,000,000 grasshoppers per day. This vast number would 42 1. The pointed and curved beak of the Secretary Bird is an efficient weapon for killing rats and other vermin. 2. White Stork {Ciconia alba). The beak of a bird is a weapon of offence and defence. Also a tool with which it procures food. 43 NATURAL HISTORY OF SOUTH AFRICA be consumed every day by the nestling birds alone, and the parent birds would necessarily have to procure a further supply for their own needs. It can thus be realised what a colossal work this one rookery of ibises was doing for man. Without the ibises successful agriculture would be impossible in Australia. When grasshoppers are scarce the ibis feeds chiefly on a fresh-water snail, which is the intermediary host of the dreaded liver fluke that destroys large numbers of sheep. " What is everybody's business is nobody's busi- ness " is a very true saying. In the instance of the ibises in Australia we see it explained, for, notwithstand- ing the immense services rendered to the individual and the State as a whole, people actually visited these rookeries and collected the eggs in cartloads. An instance is mentioned of a party in 1912 having gathered so enormous a quantity of eggs that they were unable to take them all away, and left 4,800 eggs to rot on the ground. Bird protection laws are useless unless the people of the country actively assist in helping to enforce the laws. An agitation is got up, and a public law is made, interest lapses. No combined and sustained efforts are made to have the law enforced. No trouble is When we kill the parents the bahy birds perish miserably. 44 BIRDS taken to educate the populace into a knowledge of the existence of the laws. Birds breed when the farmers' crops are young and tender, and when not persecuted they build their nests in the vicinity of the growing crops, knowing full well there will be an abundance of fat caterpillars on the cultivated lands for their needs. Many a time I have sat, hidden in a bush, watching a colony of weaver birds flying to and from the farmers' fields, bringing one or more caterpillars every journey for their hungry children. One pair of weaver birds made sixty journeys in two hours. Assuming each brought back one caterpillar every journey, the pair of birds would have removed 120 caterpillars from the farmers' fields in two hours. A full day's work would account for 960 caterpillars. Usually two to five small caterpillars are the result of each journey. The average accounted for in a day by a pair of birds would probably be 1,500. The colony under observation totalled 1 1 3 pairs of birds, and these would collect at least 150,000 caterpillars a day. Yet it is a common practice through- out South Africa to permit children, both white and coloured, to rob birds' nests of eggs or young. Should he not require either, the boy gratifies his destructive instincts by pelting the nest with stones, or riddling them with pellets from an air-gun, shot-gun, or cata- pult. It is, indeed, high time this wanton and alarm- ing slaughter of our feathered allies ceased. Boys are not by nature cruel. Their many brutal and some- times diabolically cruel acts perpetrated on defenceless 45 NATURAL HISTORY OF SOUTH AFRICA animals, birds, and reptiles are due to utter lack of the proper kind of instruction. Until economic Natural History is taught in schools, in the lecture hall, and in popular writings, the country will go on suffering from the effects of the indiscriminate destruction of our native birds and other useful fauna. What we need is more education of the heart, or, in other words, humane education. What is humane education ? It means the careful, systematic training and development of the brain centres which give rise to feelings of pity, unselfishness, and sympathy with all suffering creatures ; a desire to prevent cruelty and to make the lot of others, both human and animal, as happy as it is humanly possible, by kind acts, words, thoughts, and sympathy. The man or woman who lives entirely for the gratification of selfish desires is a parasite upon a community — an ever-present evil example to the young. Longfellow fully realised this when he wrote: — " How can I teach your children gentleness, And mercy to the weak, and reverence for life, When by your laws, your actions, and your speech You contradict the very things I teach ? " America is far in the lead in her efforts to teach her children their duty towards the animal folk. The educational authorities in that country are rapidly realising that cramming a child's brain with a quantity of dry facts is not education. It is certainly necessary to educate the intellectual lobes of the brain in certain 46 BIRDS ways to fit the girl or hoy for her or his future career, but a man may even possess the finest university train- ing it is possible to get, yet that man may be an a 1 1 - round blackguard. Why? Because in such a case the moral, spiritual, and humane lobes of his brain have not been cultivated; they have been starved and con- sequently enfeebled, hence the man uses his educated intel- lect to provide ways and means for the gratification of his perverted lower Birds Nest box suspended from a tree. cannot breed unless they have suitable nesting sites. The wise farmer pro- vides them. passions and other selfish desires. There is deep wisdom in what Cowper says : — " I would not enter on my list of friends — Though graced with polished manners and fine sense, Yet wanting sensibility — the man Who needlessly sets foot upon a worm." The beautiful white egret was nearly exterminated in Egypt by the plume trade. The Egyptian Zoo- 47 NATURAL HISTORY OF SOUTH AFRICA logical Service took the matter up just in time. A worm was devastating the cotton crops, and thousands of people were being steadily but surely beggared. The Egyptian Zoological Service did not preach humanity or kindness. The natives were simply told : " A worm is destroying your cotton crops. The egret feeds on those worms. The plumage hunters kill the egret for profit and take the money out of the country. The matter is in your hands." That was enough : the egret has at last come into his own. From a few captive egrets in the Zoological Gardens fifteen egrets were hatched in 1 9 1 3. These have now multiplied and spread all over Egypt. It is universally admitted the egret has saved Egypt's population from penury and averted national bankruptcy. If a man possesses one talent and cultivates and uses it for unselfish purposes, he is an infinitely better man than he who has two talents and uses them for the acquirement of wealth for self-gratification. Man is so absorbed in the pursuit of wealth and the gratifica- tion of personal desires and passions that he has no time for study and meditation. Does he pause and consider when he buys his boy an air-gun or shot- gun ? Does he ask himself what use his son is likely to make of the gift ? If he considers the matter at all he will know that the impelling instinct of a boy is to sally forth and kill some defenceless creature unless he has previously received a thorough moral and humane education. To refrain from committing a harmful or dishonourable act only because of the 48 1. The Pink-billed Weaver associates in colonies, and builds small round nests on the branches of trees— usually the mimosa. 2. The Black and Yellow Bishop bird weaves a big nest of grass between two reeds. . 3. The Scaly-feathered Weaver's nest is a mass of dry grass placed in a tree. The entrance hole is at the side. 4. The Black-headed Oriole builds a nest of lichen in the upper branches of a tree. VOL. I 49 NATURAL HISTORY OF SOUTH AFRICA fear of consequences is despicable in the extreme. It is not " cricket." It reflects no credit on a man at all. He cannot claim to be on a higher level than the sub-human kingdom of the animal creation until his actions are controlled by a developed moral and spiritual mentality. I have seen too much of the evil wrought by boys with guns amongst our feathered friends and helpers, the birds. Even the swallow and the martin, of all birds, were not sacred to them. These birds rank highest in value to man. Their sole food consists of insects and allied forms of life which are captured on the wing. These winged insects are adult males and females which seek one another in the air for the purpose of mating. The impregnated females find out a favourable environment and deposit their eggs. Insects, with but few excep- tions, lay immense numbers of eggs, therefore the destruction of one mature female insect is equal to the extermination of many hundreds and even thousands of larvae, such as caterpillars. 5° A Bird House for the garden or stoep. Birds require shelter from sun, wind, frost, and rain at times. BIRDS Martins and swallows rear broods of from four to six, according to the species. The young are fed on insects captured on the wing. The authorities in a certain South African town objected to the " unsightly appearance " of a number of swallows' nests under the eaves and other sheltered nooks and corners on the town hall. The fire brigade was turned out, and strong jets of water were turned on to the mud nests. Over 300 were washed down with the nestling birds, which perished miserably. Taking the average number of young in each nest at four, we have 1,200 young and 600 adults. Each family destroys on an average 2,000 flies, gnats, winged weevils, and aphides in a day. It will thus be seen this little colony of swallows destroyed more than one million insects daily. These were taken in and near the vicinity of the town. Comment on the action of the authorities of that town is needless. Mr Eustace Montgomery, the late Director of Veterinary Research in South Africa, stated in 19 19 that the annual losses of stock farmers in the Union of South Africa from preventable diseases were not less than ^8,000,000. These stock diseases, with but few exceptions, are due to injection of disease microbes through the mediumship of insects and allied forms of life. This does not end the trouble. Our indifference to the welfare of our bird allies results in an abnormal increase in the numbers of insects which destroy pasturage and crops, bringing about an insufficiency of food for stock animals. The lucerne caterpillar, for instance, 51 NATURAL HISTORY OF SOUTH AFRICA attacks and demolishes great fields of beautiful green lucerne. The army moth caterpillar blasts the veld and crops as by fire. Clouds of migratory locusts in the winged and wingless stages eat up both crops and pasturage. Hundreds of other destructive pests take their unearned share of food which ought to be avail- able for our stock animals. We have great ideals, aye ! beautiful dreams of South Africa's fair lands sustaining a population of twice and many times more than its present number. But do we combine and utilise our available resources to bring our ideals to fruition ? No ! we may be aptly compared with the farmer who possesses a hundred fertile acres and only makes use of half a score of them. The United States Department of Agriculture has estimated (1921) that insects damage the nation's crops to the vast extent of 2,000,000,000 dollars annually. The Entomological Branch of the Canadian Department of Agriculture say that insects cause a loss of at least £25,000,000 to their country. When will man cease to slay his feathered soldiers and policemen ? The injustice, the brutality, the stupidity of his action in destroying his feathered friends and allies is inexcusable. There is no excuse for ignorance. Ornithologists and entomologists have raised their voices in protest, but they are heeded not. Men turn a deaf ear and continue to pursue the methods of their uninformed ancestors. The men who retard human progress most seriously are those who are ignorant of their ignorance. What is urgently BIRDS needed is to teach the people the value of our native birds, and to provide the necessary machinery for the enforcement of bird protection laws. In South Africa the majority of wild birds are under the protection of the law, but no efforts are made to either enforce these laws or to educate the school children on the subject. How long are we to allow these allies to be at the mercy of the trap, the snare, the catapult, and the gun of the ignorant ? Just so long as we permit this unreasoning and callous slaughter of our birds, we shall have our crops, our orchards, our pasturage, and our forests riddled and damaged by the insect armies. Birds seek out and devour the worms in the wood, the caterpillars on the crops, the aphides on the shrubs, the fruit and disease-carrying flies in the air, the wire- worms and other larvae underground, and pests which are wounding and slaying all forms of useful plant life. In Canada and the United States of America strong efforts have been and are being made to reduce the gigantic losses which are caused by the depreda- tions of insects. It is estimated (19 15) that the birds of Nebraska eat 1 70 cartloads of insects a day. This was the calculation of an eminent naturalist. He also estimated that the birds of Massachusetts destroyed 21,000 bushels of insects daily; and a single species of hawk saved the farmers of the Western States 175,000 dollars a year by destroying grasshoppers and field mice. When you take life away with one blow, do you not sometimes think how powerless you are to make S3 NATURAL HISTORY OF SOUTH AFRICA live again that which you have killed ? When you kill a bird, does not remorse sometimes overtake you when you think what a miracle of machinery you have stopped by a thoughtless act ? " We pass through this world but once. Any good we can do, therefore, or any kindness, let us do it now, for we shall not pass this way again." BIRDS AND THE ORCHARD Old colonists in South Africa all tell the same tale of how, long ago, the fruit trees were laden with good, sound fruit. Now, the fruit grower in order to obtain even an average crop, is obliged to wage unceasing war on the hosts of insects which devour the trees or lay their eggs in the ripening fruit, rendering it maggoty and useless. Should he grow careless and become slack in his offensive or defensive measures, his crop is ruined. Nearly all this mischief started in and near the towns and villages. Boys and even grown men wantonly persecuted the birds and robbed their nests, and the latter, in consequence, became increasingly shy and scarce. The disappearance of the birds brought about an abnormal increase of the various insects which attack fruit trees and the ripening fruit. Larvae of beetles tunnel the trunks and branches ; caterpillars and certain species of beetles feed on the foliage ; flies and moths lay eggs in the fruit. Farmers, in their anxiety to destroy the fruit-eating 54 1. The Drongo weaves its nest between two branches. 2. The nest of the Turtle Dove is a flimsy structure of twigs and rootlets 3. The nest of the Tchagra Bush Shrike is built in a thick bush. 4. The Bakbakiri Shrike rears its family in a nest in a low shrub. 5. The Cape Rock Thrush builds its nest among rocks, or under a stone. NATURAL HISTORY OF SOUTH AFRICA birds, such as the muis vogel and bulbul, used little or no discrimination. The sight of a bird in the fruit trees is proof to them it is a pest. Even should a man confine himself to shooting true fruit-eating birds, the frequent discharge of his shot-gun will damage the trees and terrify all the birds in the neighbourhood, causing them to abandon the locality for a safer habitat. Unless other means such as pellet guns are used, it is often more profitable to allow the fruit-eating birds to take a toll of the fruit than to lose the entire crop and risk damage to the trees themselves by insects and their larvae. If decoy bulbuls and muis vogels are placed in cages and limed twigs are placed over or near the cages, considerable numbers of these birds may be caught. Another method is the trap cage. The mouse bird or muis vogel can be destroyed in three ways : — i. Injecting a solution of strychnine into ripe fruit. This is a rather risky proceeding, and may easily lead to accidental poisoning of children. 2. The muis vogels have a habit of roosting in a bunch, clustering like a swarm of bees. If their roost- ing place can be located, a single charge of small shot will destroy a large number. . On cold, cloudy days they may often be seen in clusters in the fruit trees. 3. The most efficient way is to trap them. The trap is a simple contrivance, and is made of ^-inch mesh wire netting stretched on a frame of No. 6 or No. 7 fencing wire, and fashioned like an eel trap with a funnel at one end. Some fruit is placed on a 56 BIRDS AND THE ORCHARD hook, made of wire, inside the trap, and the trap is placed in a fruit tree or in a tree near the orchard. The muis vogel being a climbing bird, the trap should be placed with the funnel end below. If put in a fruit tree, a branch with fruit on could be pushed into the trap. The trap should be about 3 feet by 1 foot. Fruit growers should have several of these traps in various parts of the orchard. The persecution of birds in the neighbourhood of towns and villages and on some farms has now resulted in South Africa being absolutely overrun by Birds clear the twigs of clusters of insects' eggs. fruit and tree destroying insects. Man seeks by costly, and at best very imperfect, ways to stem the invasion, but in the end his efforts prove futile. Already fruit growing is being abandoned because it entails so much expense and expenditure of time in combating the hordes of insects which swarm down upon the orchards. The rescue of the fruit industry from eventual extinction rests with the native birds. In the bird army we have an efficient ally in our fight against the insect fruit pests. It is not recommended that we cease our manifold artificial methods of attack and defence against the enemy. Let us also avail ourselves of the help which the birds can render. 57 NATURAL HISTORY OF SOUTH AFRICA All they ask is protection. Then, why not be up and doing ? It is not enough that we individually refrain from persecuting the birds. We must combine and protect these valuable helpers from molestation by ignorant, irresponsible, and morally degenerate folk. Before raising his hand in anger against any bird, the fruit grower should ponder well, lest by the removal of one evil he brings a greater upon himself. Some species of birds supplement a large insect diet by a little fruit, or devour it only in times of drought when no water is available ; others peck the seeds from fruit already partly eaten by true fruit-eating birds or beetles ; others, again, attack maggoty fruit and feed on the maggots, fruit flies, and beetles, and not the fruit. Some birds peck off buds now and then, but no species of South African bird is, so far, guilty of this crime to any very serious extent. When the English house sparrow (Passer domesticus) increases abnormally, it does considerable damage to budding fruit trees, and at times it becomes necessary for man to considerably reduce the numbers of this rapidly breeding bird owing to its natural enemies having been practically exterminated in Great Britain. A man who grows fruit as a hobby, or who is backed up by large capital, may possibly ward off the attacks of insects to a limited extent by artificial means ; but, nevertheless, he has no moral right to use his influence to deprive the poorer class of fruit growers of their only ally, the birds. Buckland mentions an instance of man's hasty 58 Black and Grey Cuckoo {Coccystes phyopinarius) at the nest of a Cape Bulbul {Pycnonotus capensis). This cuckoo laid a large while egg in the bulbul's nest, and, taking one of its host's eggs in its mandibles, it flew away. The Cuckoo's egg, and the two eggs of the bulbul, are shown in the illustration. This happened on 18th December 1919. 59 NATURAL HISTORY OF SOUTH AFRICA judgment, and the result. Frederick the Great of Prussia, angered because a flock of sparrows had pecked and spoiled some of his cherries, issued an order that every small bird on his estate be searched out and killed. Within two years his beloved cherry trees were bare of fruit, but heavily weighted with caterpillars instead. The only fruit-eating birds which do not earn their wages to my knowledge are the coly or mouse bird (Muis vogel), the bulbuls, known as the kuifkop, geelgat, topknot, black head, and tiptol. In some localities the red-winged starling or rooivlark {Amydrus morio) ravages the orchards. Poisoning fruit to kill fruit-eating birds is often a harmful and wasteful practice, because large numbers of birds are poisoned which resort to the orchard to peck at fruit already damaged by the true fruit-eating birds, beetles, flies, and maggots. I have seen wood- peckers and other eminently useful insectivorous birds lying dead under trees, some of the fruit of which had been poisoned. The following experience of the owner of a large cherry orchard in Kent, England, is interesting reading : — ' Two men were constantly employed in the early summer to shoot bullfinches, chaffinches, wood- pigeons, and indeed every bird that dared to chirp. An ominous stillness pervaded the orchard and, notwithstanding the money wasted in labour, powder, and shot, the crops were far below the average, owing to the depredations of thousands of caterpillars that fed 60 BIRDS AND THE ORCHARD upon the young fruit buds and in due course upon the leaves, hanging by silken cords from the branches. In this case it would have been better and cheaper to have left the birds alone rather than to have cultivated such a magnificent crop of caterpillars. These, of course, carried on the mischief on a much more extensive scale the following year." Mr Joseph Witherspoon, of Red Rose Vineries, Chester-le-Street, writes as follows : — " Of that class of people, forming so large a portion of our population (in England), who never bestir themselves save when their interests are attacked, birds have much reason to complain. With them a bird's existence is ignored, save during the short period of the year when, undoubtedly, they do consume somewhat of that which is of more or less value. It was my fortune to be reared in a school where birds were certainly not regarded as friends. My father, a market gardener, encouraged me to destroy every nest I found ; and it was possessed with much the same feeling that, after being engaged in other pursuits for thirty years, I returned to the calling of my boyhood, and also commenced growing fruit under glass. I soon discovered that insects were seriously destructive both inside and outside, and believing that a good sharp frost would rid us of the latter, I longed for a hard winter. The following winter we had 39 degrees of frost, or below zero. Even fruit trees of some varieties were killed, and as for birds, in some places they were all but extinguished. From this period, sixteen years ago, you may date my becoming a close 61 NATURAL HISTORY OF SOUTH AFRICA student of the habits of birds, as, with the thrush tribe all but annihilated, the following summer snails were a scourge, gooseberry bushes were stripped by in- numerable caterpillars, and all trees that had been injured by the frost had their sickly foliage propor- tionately devoured by the red spider. " For the protection of my one and a half acres of trees and fruit bushes, situated some 600 yards from the town, I have within the vinery walls about twenty-five pairs of sparrows, and my gooseberry bushes are never touched. As for sparrows eating the blooms, I have, as yet, only heard of the perform- ance. These are stern, unattackable facts. During the first year, after the serious frost referred to, I dusted my bushes with hellebore powder. Amid the shoals of dead caterpillars that lay under every bush I discovered several dead sparrows, which had been killed by eating the poisoned pests, and so I had it proved conclusively that they did eat the gooseberry caterpillar. " Birds that are fed on the premises, and that live and feed amongst the trees, search for and attack the larvae of grub at every stage of their existence. I attribute much to having birds bred, and always near, where you want them, for such never attack buds ravenously, as do town-bred birds, the latter not being able, so situated, to secure the green food necessary for their health. With gooseberry bushes near a stackyard you will probably find, especially during a snow storm, that the want of green food has compelled the birds to eat the buds. Also in early spring, in Nest of a Hammerkop or Mudlark {Scopus unibretta) in St George's Park, Port Elizabeth. It is composed of bark, twigs, bits of paper, rags, and straw, and would fill a Scotch cart. 63 NATURAL HISTORY OF SOUTH AFRICA the neighbourhood of large towns, the conditions being similar, everything that is green will be sought for. Likewise, when gardens are surrounded by woods, it is only by a liberal use of nets that any reasonable portion of the fruit can be saved. I provide nesting places, and thus have birds so near to the caterpillars and so far away from house morsels, that they devour the pest greedily. But fruit crops being thereby secured, we must next draw on our ingenuity to prevent the birds taking more than their fair tithe. Birds are very destructive to corn when in the milk state, and fields, situated near towns, suffer severely. Had I such a field I would set two school children, the one from 4 a.m. till 12 and the other from 12 till 8 p.m., each having a crake, to drive the birds away. If the children cost, say, £1 for the fortnight, I should perhaps save from £5 to /~io of a crop which, but for the birds, would be non-existent. " In part justification of those who would exter- minate birds, it must be admitted that for perhaps six weeks in the year, crows, blackbirds, and sparrows are especially destructive ; but if cultivators would concentrate their efforts to ' keep them moving ' at such times to other fields, then they would not be injurious, and their services would so be secured for the longer period, the great value of which will only be known when thousands of grubs are allowed to breed and devastate through our ignorantly tampering with the necessary balance so wisely provided. " As to the hard-billed tribe of birds which destroy the seed beds, the gardener must protect his beds with 64 BIRDS AND THE ORCHARD nets, as these species live mostly on seed all the year round ; indeed, we cannot but be witnesses to the vast swarms that feed on stubbles and fallows during the winter months without thinking that were it not for these birds eating myriads of the seeds of choking, impoverishing weeds, our corn crops in thousands of cases would not be worth the gathering. " Since writing the above, with a further season for close observation, I offer a few more remarks on the labours of my feathered favourites. Whilst many fruit growers have been racking their brains to discover still more poisonous compounds for the destruction of the apple weevil and other insect pests, I have again found my birds quite equal to the occasion. My apple crop, in fact, has been so well preserved that I do not remember to have met with even one fruit disfigured by insects ; this, too, after, by the aid of a microscope, discovering many more maggots than I expected to find. Sure enough the enemy were in possession, and the battle was rather tough ; but, all in good time for the fruit crop, the brave birds brilliantly conquered. In connection with my occupation there are three things that I love to see, viz., crows following the plough, ducks (under two months old) in either vinery or orchard house, and sparrows, especially during the blooming period, feasting and holding high converse in an apple tree. My advice to all is : Think long, think seriously, and search deeply before attempting to upset the laws of Nature or disturb the balance of forces vol. i. 6$ 5 NATURAL HISTORY OF SOUTH AFRICA established by the Great Designer and Maker of the Universe. " The last season I have had further confirmation of the great value of birds, as within fifty yards of my sparrow colony my apple orchard has been the wonder of the neighbourhood, and numerous visitors have come from adjacent towns to see the sight, all declaring they never saw the like before." " Think every morning when the sun peeps through The dim, leaf-latticed windows of the grove, How jubilant the happy birds renew Their old, melodious madrigals of love ! And when you think of this, remember, too, 'Tis always morning somewhere, and above The awakening continents, from shore to shore, Somewhere the birds are singing evermore." Longfellow. BIRDS AND THE GARDEN The garden and cultivated farm are ideal places for insects to breed and multiply in. Moths, butterflies, and certain kinds of beetles always deposit their eggs in the most favourable spot for the development of their grub and caterpillar children. Therefore it is only natural that by day and by night these winged pests should flock in from mountain, forest, veld, and valley to deposit their eggs amongst the succulent 66 BIRDS AND THE GARDEN plants of the garden or green waving corn or wheat of the fields. The eggs hatch and the larvae instantly begin their attacks on the vegetation, each according to its kind. Some burrow underground and feed on the roots ; others bore into the stems of plants and eat out the pith ; others, again, attack the foliage, the bud, or unripe grain or fruit. These brigands are wily. They employ many clever devices to deceive and to escape the attention of the owner of the produce they are bent on devouring. In his tours of inspection, or when labouring in the fields during the daytime, he Cleaning twigs of clusters of insects' eggs. sees but few, if any, of his enemies. The birds, however, from long generations of inherited experience, know the crafty ways and dodges of these thieving rascals. At the first streak of dawn the birds are out and busily searching the ground and vegetation before the caterpillars have sought a place of concealment beneath the loose soil, decaying leaves, grass, behind bark, on the under side of the leaves, etc. Again, at sundown the birds await the reappearance of the robbers and snap them up. In fact, except during the hottest part of the day, birds are busily searching for their insect prey, merrily chirping, twittering, and calling affectionately to one another all the time. 67 NATURAL HISTORY OF SOUTH AFRICA Wise Nature, knowing that the insect army in richly cultivated fields is at times likely to gain' the upper hand in spite of the constant onslaughts of birds during the daylight hours, has provided another powerful check. Moths fly by night and lay thousands and tens of thousands of eggs during the hours of darkness. One female moth, therefore, is capable of producing a small army of caterpillars. Every moth destroyed before it succeeds in depositing its eggs is equal to killing five hundred or a thousand caterpillars. The night jar {Caprimulgus), variously known as the night hawk, goat-sucker, nachtuil, has been specially evolved by the Creator for the purpose of preying on insects which fly by night. Emerging from its leafy retreat at dusk, it is on the hunt the entire night, and its labours do not cease until dawn. The number of insect pests it destroys is enormous. When flying insects are in insufficient numbers to satisfy its needs, it seeks others on the roads, pathways, and other bare spots, surprising them while they are in the act of travelling to seek more succulent vegetation, or a suitable place in which to hide and change into the chrysalis state preparatory to issuing forth as fully- developed winged insects. From an analysis of the stomachs of a number of night jars, the following one may be taken as an average example : — 80 moths; 46 beetles; 8 caterpillars; 21 insects of various species. Taking half the moths and beetles to be females, 68 1. A pair of Paradise Flycatchers and nest. The nest is made of lichen, cobwebs, and moss. 2. The Red-necked Bush Pheasant lays from 8 to 20 eggs in a nest on the ground in the midst of dense scrub, long grass, or weeds. The ehieks are active from birth. .3. The nest hole of a Woodpecker in a dead tree trunk. 69 NATURAL HISTORY OF SOUTH AFRICA and estimating that each would lay 500 eggs, we have a total of 31,500. Multiplying this by thirty, we have the enormous total of 945,000 noxious insects destroyed in a month of thirty days by a single night jar. Yet, in an idle moment, or to gratify an insane desire to kill, or impelled by superstition, a man will deliberately shoot down such a bird. If the harm fell solely on that man's head, then there would be some cause for gratification in the knowledge that the guilty party had paid the penalty. Unfortunately, the harm falls upon the community generally. During the summer season in South Africa the destructive termite, popularly known as the white ant, sends forth vast swarms of fertile winged males and females to spread over the land and found new colonies. These often issue forth in uncountable hosts on warm nights, and the night jars get busy and gorge themselves on the soft, milky bodies of these terrible pests. Every pair destroyed means one colony less. A single colony of these termites is capable of doing damage to the extent of thousands of pounds sterling by eating fencing posts, the woodwork of houses, destroying the roots of plants, shrubs, and trees, as well as stored fodder ; and, in fact, anything dry of a vegetable and animal nature. The ravages of the white ant in South Africa seriously impede the development of the country, therefore the life of any creature which preys largely upon this pest should be held sacred, and there is no better ally than the night jar. This bird is absolutely harmless to man, asking nothing at all from him for its services except freedom from 70 BIRDS AND THE GARDEN persecution, so that it may the more efficiently succour him. In the Farmers Weekly, 22nd August 19 17, the following paragraph appeared : — " A plague of mice is devastating the Dow Country and destroying crops in every direction, reports the New Agatha correspondent of the Zoutpansberg Review. As one passes along at night they quelch under the horses' feet. Traps are being set in every direction, and in one field the writer saw over fifty traps set, but it does not seem to help. Unless the plague ceases quickly, every bit of grain will be eaten up. It is said that few snakes have been seen this season, but whether this fact has anything to do with it or not is not known." In another issue of the same journal a farmer wrote complaining bitterly of the hordes of rats and mice which were causing extensive destruction to his crops, young plantations, and orchards. Poisons and traps had failed, and he was in despair. Here, again, we have cause and effect. The owls, hawks, and snakes, which are the natural foes of these destructive rodents, had been destroyed in such numbers that the balance of Nature had been upset, and man was called upon to pay the penalty. A small piece of land was specially ploughed and a few hours later a black crow, or African rook, was shot on it. We opened the crop and counted thirty- eight skins of root-devouring beetle larvae in it. Yet this bird is counted by the agriculturist as a pest. 7i 1 . Nest of Smith's Weaver Bird, with the entrance tube of usual length. 2. Nest of Smith's Weaver Bird, or Bottle Fink, with unusually long- entrance tube. 3. The Spotted-back Weavers associate in colonies, and build their nests from the extreme ends of branches. 4. The Yellow Weaver attaches its nest to two water reeds. The entrance hole is under the front part of the nest. 72 BIRDS AND THE GARDEN In the large gardens surrounding the Port Eliza- beth Museum we have a pair of Stanley cranes, otherwise known as blue cranes. The gardens used to be swarming with snails {Helix adspersa), slugs, caterpillars, and underground larvae. To-day no insect life is to be seen, and for the past three years these two cranes have sufficed to keep the gardens free of. all species of insect pests, excepting scale and blight. One man may encourage birds in his garden or on his farm, but if his neighbour persecutes them they become so shy and timid that the sight of a man sends them flying off to their retreats in terror. The consequence is, the intelli- gent and humane farmer suffers equally with his neighbour, for the frightened and nervous birds pay his garden and fields but a hurried visit at daybreak, and snatch up a few caterpillars and fly off" in hot haste before their arch-enemy, who should be their protector, is out and about. These birds, if protected, would have remained and fed on cater- pillars and other noxious insects all day long. Thus does man prepare a scourge for his own back. Sometimes a bird is seen busily digging with its bill on recently planted ground for the dreaded cut-worms which feed so voraciously on the tiny shoots before and just after they emerge from the 73 The birds feed their young on the cater- pillars in the wheat. NATURAL HISTORY OF SOUTH AFRICA ground. The conclusion invariably arrived at is that the bird is digging up the germinating seed, and sentence of death is hastily passed on it. Perchance, after much exhausting toil, a bird fails to satisfy its hunger on cut-worms and caterpillars, and is seen to take a few peas or some grain. This evidence, to the average human observer, is sufficient justification for destroying the bird and all its species, although for every seed it eats a thousand are indirectly saved by it. For instance, we will take a large field of wheat as an illustration. From the time the seeds germinate until the crop is ripe for reaping, cut- worms, other grubs, caterpillars, grasshoppers, and beetles are steadily devouring it. A caterpillar will eat at least fifty young wheat plants in the course of a single day or night. One small bird will destroy ioo caterpillars a day when they are young, and ten times that number if it has a nest full of babies. So, if a bird destroys ioo caterpillars in a day, and if a caterpillar eats fifty wheat plants, then the bird is saving 5,000 wheat plants every day, or 150,000 in a month, from destruction. Should the bird be feeding five nestlings at the same time, a minimum of half a million wheat plants would be saved in a month. Not only this, but if those caterpillars had come to maturity they would have changed into butterflies or moths, and the next genera- tion of caterpillars would have multiplied at least a thousandfold. This, then, represents a portion of a breeding bird's labours for the farmer. When the wheat is ripe, and if it be one of the grain-eating 74 BIRDS AND THE GARDEN species, it will perhaps seek some slight payment for its long and arduous services. It will probably be satisfied with two heads of wheat per day. Is this a heavy wage for a bird that has been the means of saving a minimum of 5,000 stalks of wheat a day for six or eight weeks ? Is this feathered labourer not worthy of his hire ? An observant gardener, after thirty years' experience in the cultivation of fruit, flowers, and vegetables, says : — " Often and often I have known rooks and star- lings charged with pulling up wantonly row after row of young broad-bean plants, and it is only when I have pointed out that all the plants had been previously attacked with the terrible ground pest, the wire-worm, that a more friendly view has been taken of the mischief, or so-called mischief, done by the birds. Precisely the same thing happens in corn- fields, and the seedling wheat, etc., is strewn about — evidence as strong as holy writ. By good cultiva- tion rather than by adventitious means, allowing birds a free run of the farm, and by placing water at their disposal, the wise farmer or gardener will leave most of the birds to carry out their natural functions, which are largely for his particular benefit." IS NATURAL HISTORY OF SOUTH AFRICA BIRDS AND PASTURAGE To the stock farmer, birds, with the exception of eagles, are an unmixed blessing. They ask of him no return for their services in keeping in check the insects and rodents which would otherwise devour the pasturage. When for any reason birds are reduced in numbers below the normal requirements of Nature, insects, rats, and mice multiply and become a plague. Miles of country may thus be spoiled or reduced considerably in value from a stock-feeding point of view. In Natal, many years ago, a storm of icy cold wind and rain continued for an entire day and night. Stock and poultry died of cold and exposure in tens of thousands. The mortality amongst wild birds was enormous. Before the storm the forest groves, valleys, and fields were alive with birds, and their cheery calls echoed everywhere. After the storm the survivors crept out from their retreats, cold and hungry, and for two years birds were comparatively scarce. The blizzard occurred during the winter. The following season and the one after that were the worst the farmers, gardeners, fruit and flower growers had ever experienced. In the absence of birds, the insect hordes increased and swarmed everywhere. I happened to have several acres under cultivation, but the grasshoppers swarmed in such numbers that not a single plant reached maturity. Kitchen garden- ing was equally hopeless, for the instant the plants 76 Plate III. — Bacbakiri Shrike (La metritis gutturalis). The Shrikes protect our gardens, orchards and plantations from the attacks of insects BIRDS AND PASTURAGE pushed their heads above ground they were eaten off by these voracious grasshoppers, which in a day con- sume ten times their weight in vegetation. Four acres of lucerne were attacked by a countless swarm of green caterpillars, and every leaf found its way into the inside of a caterpillar. Insects were in myriads on the veld ; native trees and shrubs suffered heavily. Migratory birds arrived and helped to check the enemy's advance until the native birds had once again increased sufficiently to hurl back the foe. The loss indirectly occasioned to the farming industry by the destruction of bird life in that blizzard was enormous. In the neighbourhood of Port Elizabeth the pasture lands for several seasons in succession were invaded by hairy caterpillars which swarmed everywhere. They devoured both grass and shrubs, and invaded the vegetable and flower gardens. My grounds were a sanctuary for birds, and in consequence they congre- gated, bred, and slept there in large numbers. I kept the birds under careful observation, and found the only one which attacked and ate this uninviting- looking caterpillar was the silent bush robin, other- wise known as the black and white flycatcher (Sigelus silens). This is a sociable little bird, and it builds its nest in situations easily accessible to the egg-hunting boy. Consequently its little home is raided and robbed on a wholesale scale every breeding season. The adult birds are persecuted and killed by boys at all times. Some kill them wantonly, but the majority relentlessly persecute these eminently useful 77 NATURAL HISTORY OF SOUTH AFRICA birds under the erroneous belief they are fiskal shrikes, they unfortunately having a superficial resemblance to that bird. The fiskal shrike, other- wise known as the jack hanger or butcher bird, is hated by boys because it sometimes kills pet cage birds by settling on the cage and seizing them between the wires in its powerful bill, with which Nature has provided it for its mission in life as an insect destroyer. The reduction of the silent bush robins resulted in a plague of these hairy caterpillars, and considerable damage was done every spring to pasturage and gardens, all because of the thoughtlessness of boys due to lack of proper teaching. In various parts of South Africa, principally in the neigh- bourhood of villages, I have seen large areas almost denuded of vegetation by grasshoppers, cut-worms, and cater- pillars. The mischief does not end with the loss of pasturage. Rain falls, and the water rushes rapidly off the hard, sun-baked surface, and on its way to the nearest spruit or river it cuts fissures which develop in time into large dongas and carries away the soil, leaving stones and pebbles in its wake. 78 Caterpillars eat up the pasturage. W^-r-^V KL \^1 1. The nest of Burchell's Coucal, or Vlei Loerie. ■2. The Honeysuckers make their nests of cobwebs and lichen. 15. The Cape Longclaw makes .1 nesl on the ground. 4. The Quail also lays her eggs on the ground. 0. Nest of the Stanley Bustard, or Veld Paauw, in the heath. 79 NATURAL HISTORY OF SOUTH AFRICA When the land is clothed with vegetation, this erosion of the soil is prevented, and a large percentage of the water is retained and absorbed by the earth. Here, again, we have cause and effect. Man destroys the birds ; insect pests increase and eat up the vegetation ; pasturage disappears and the land is ruined. These are the two sides of the picture : — No birds : swarms of insects ; no food for stock ; barren land. Numerous birds : few insects ; rich pasturage ; good land, increas- ing every year in fertility. Verily, as ye sow, that shall ye also reap. In the vicinity of Pietermaritzburg, many years ago, the larks and other grass birds were practically exterminated by youths and boys with shot and pellet guns. This resulted in the grass being eaten off most alarmingly by grasshoppers. The tender, sweet and nutritious grasses died off and the hardy wire grass, which is unpalatable to stock, super- seded it. In other places noxious weeds, which the grasshoppers would not eat, gained the upper hand, ripened their seeds and sowed them broadcast, with the aid of the wind, over the cultivated lands. Thus, owing to our carelessness and want of specialised knowledge, or criminal failure to heed the warnings of naturalists, dire and lasting harm was wrought. James Buckland mentions an instance which occurred some years ago in Bridgewater, Massachusetts, U.S.A. A great battue was held by the ignorant towns- people in the spring-time, resulting in so many grass birds being killed that their dead bodies were ploughed into the land for manure. The people paid dearly for 80 BIRDS AND PASTURAGE their brutality, for the following year the grass was attacked below ground and above ground by insect pests in such numbers that it withered and died as if blasted by fire. The wanton destruction of wild birds in one of the inland districts of Australia, on which large numbers of settlers had established themselves with the helping hand of Government some years ago, brought its punishment swift and sure. Caterpillars and beetles swarmed over the land and succeeded in converting wide areas of magnificent pasture land into a barren waste. The grasses were utterly destroyed owing to the roots having been devoured. A similar calamity befell the New Zealand farmers. The senseless and brutal persecution of native birds resulted in a plague of crane flies and click beetles. The larvae of these pests attacked the roots of the rich meadow grasses, and killed the plants as effectually as though they had been scorched by heat. This scourge threatened to spread over the length and breadth of the land. Again man availed himself of the aid of his per- secuted feathered friends. The English starling was introduced. It multiplied rapidly and fed greedily on the larvae, and saved those undeserving farmers from having to pay the extreme penalty for their misdeeds. Without the help of our bird allies there would be no pasture lands for stock. Every blade of grass would disappear from the face of this green earth. The cut-worms, grasshoppers, caterpillars, and grubs would make short work of it, roots and all. Man would be as powerless in the face of this vol. i. 8 1 6 NATURAL HISTORY OF SOUTH AFRICA mighty host as a child in his efforts to stem the advance of an avalanche. Without the help of birds man would quickly perish, and Earth would know him no more. Yet this vital truth is not taught to school children. They go forth from the schools and, knowing no better, great numbers of them employ much of their time in set- ting back the clock of human progress and expansion. " I saw with open eyes Singing birds sweet, Sold in the shops For people to eat ; Sold in the shops of Stupidity Street. " I saw in vision The worm in the wheat, And in the shops nothing For people to eat ; Nothing for sale in Stupidity Street." Ralph Hodgson. Partridges are magnificent conservators of pasture lands. When overabundant in the vicinity of culti- vated lands, partridges are apt to do a certain amount of damage. If the farmer, after due consideration, considers they are doing more harm than good, he can easily reduce their numbers. He should bear in mind, however, that they are warring all the time on insect pests, and that if these insects were allowed to breed unchecked by the partridges, they would very likely do his crop 50 per cent, more damage than the birds. Insects may be compared to weeds in a garden. If 82 BIRDS AND PASTURAGE weeds are not systematically destroyed, the entire- garden will soon be overrun with them, and the useful products choked. So, too, with insects. Kill off their natural enemies, and they multiply and spread with even greater rapidity than weeds, until they cover the entire farm, bringing red ruin to the owner. The desirability of careful investigation by trained men into the value or otherwise of birds is brought home by the fact that the Legislature of Pennsylvania, on 23rd June 1885, passed an Act known as the " Scalp Act," for the destruction of hawks, owls, weasels, and minks, providing a bounty of fifty cents each. This Act was passed after a great outcry and much pressure by farmers, and it was fondly hoped that agriculture would benefit wonderfully. The law was in operation eighteen months, and in that period of time 90,000 dollars were paid out in bounties. Experts subsequently went thoroughly into the matter and estimated the total annual loss to poultry in the State of Pennsylvania to be about 1,250 from the depredations of the birds and animals outlawed. It was calculated that every hawk, owl, and weasel killed about 900 rats and mice annually. The result of the operation of this Act for the one and a half years of its existence was the destruction of 128,571 of the most inveterate enemies of rats and mice. The experts put down the total loss to agri- culture for this short period of the reign of stupidity and ignorance at 3,947,130 dollars, or, to put it in another way, the State threw away 2,105 dollars for every dollar saved. This only represented the direct 83 NATURAL HISTORY OF SOUTH AFRICA loss during the operation of the Act. The destruction of so great a number of enemies of rats and mice enabled the latter to multiply until, by slow degrees, the balance of Nature was restored. The ultimate loss to the State by this deplorable interference with the workings of Nature must have resulted in the loss of at least 50,000,000 dollars. The destruction of so-called game birds to-day is a practice which brings financial loss on a very large scale. The partridge is an example. At intervals during the game season, which is during the winter months in South Africa, I examined the contents of a large number of crops, and they consisted of termites, beetles, grasshoppers, locusts, slugs, snails, larvae of a wide assortment of insects ; nodules from the roots of water grasses ; seeds, and the fleshy roots of weeds, and those of a few small veld plants. The contents of stomachs which I examined at intervals during the summer months consisted of the same miscellaneous collection, with the addition of a lar^e number of caterpillars, eggs of locusts, winged termites, grass and weed seeds. " The summer came, and all the birds were dead ; The days were like hot coals ; the very ground Was burned to ashes ; and in the orchards fed Myriads of caterpillars, and around The cultivated fields and garden beds Hosts of devouring insects crawled, and found No foe to check their march till they had made The land a desert without leaf or shade." Longfellow. 84 BIRDS AND FORESTS BIRDS AND FORESTS The forest trees have many enemies. The insect is by far the most formidable. Remove Nature's checks on the multiplication and spread of insect life for a few years, and the forests would be swept out of existence. Like a human army the insect host is divided up into regiments and battalions, and their methods of attack differ one from an- other. Each has its special allotted task to perform. Some of them attack and devour the seeds and nuts ; others eat up the roots of seedlings. Another kind j . • The Cuckoo and the Oriole are deposits eggS in a Crevice in fond of hairy caterpillars. the bark of a tree. These hatch into grubs, which bore their way into the trunk or branch and feed upon its substance. The holes let in moisture and destructive fungi which gradually bring about the death of the tree by slowly but surely sapping its life, like a cancer in the human body. The rotting eventually becomes so extreme that the tree dies, slain indirectly by the grub of a beetle. Other kinds of grubs attack and feed on the soft inner bark and sap. Caterpillars swarm over the entire tree and denude it of leaves. The leaves are the breathing organs of trees ; they are its lungs by means of which the tree inhales carbonic acid gas and 85 NATURAL HISTORY OF SOUTH AFRICA exhales oxygen. The majority of trees die if deprived of all their leaves. I have seen patches of forest blasted and dry as though stricken by a fierce wave of heat. I watched an army of caterpillars kill a noble old oak tree in Pietermaritzburg. They began at the top of the tree and, eating many times their own weight of leaves each day, they, in the course of two weeks, stripped it absolutely bare of foliage. Then, descending to the ground in the night, they migrated to another tree and blasted it also. A few birds made daily assaults on this mighty host, but alas ! they were but the attenuated remnant of a once strong army of defence. The human folk in their blindness had succeeded in almost exterminating their allies. Battalions of gall-flies attack the twigs and form galls upon them. Weevils bore into the pith and lay eggs which hatch into grubs. The cicada, or " Christmas bee," inflicts wounds in trees, often of a serious nature. Aphides, scale insects, and plant lice weaken the tree by sucking its juices, which are to it what blood is to us. The grubs of great numbers of species of moths feed upon the buds and flowers. Preyed upon by such hosts of enemies, the tree grows increasingly weak and becomes a prey to parasitic plant growths such as fungi ; and the terrible white ant or termite attacks both roots and trunk of the harassed and sickly giant. Such are the enemies which prey upon forest trees ; enemies which, if not kept sternly in check, would multiply in an incredibly short while and sweep the forests out of existence. And without 86 Eggs of a moth on a leaf. Small birds diligently search the foliage of trees, shrubs and the farmers' crops for the eggs of insects on which they greedily feed. Photo by Y K. Roots, in the National Geographic Magazine of America.) 87 NATURAL HISTORY OF SOUTH AFRICA forests all higher forms of life in the world would perish. Buckland puts it very aptly : " But for the trees, the insects would perish ; and but for the insects, the birds would perish ; and but for the birds, the trees would perish." Nature fortunately has provided an efficient army to keep the enemies of the forest trees in check. They breed too rapidly, and they are too clever in hiding and otherwise escaping notice for birds ever to absolutely exterminate them. But so long as man does not unreasonably persecute the birds, they will succeed in keeping the enemy in check so that the damage inflicted may be easily made good. Purely insectivorous birds will never increase too largely in numbers except for a brief space, for an excess of insect-eating birds means a scarcity of food, and the less physically fit die off, and so Nature adjusts the balance. What of the many fruit-eating birds in the forests ? Do they cause damage ? By no means. They are one of Nature's tree and shrub planters. Eating the berries and fruit, they sow the seed far and wide. At Port Elizabeth the sand dunes at one time threatened to overwhelm the southern portion of the city. Port Jackson wattles {Acacia cyclopea) were planted over the dunes. What was formerly a vast shifting waste of sea sand is now covered with a dense forest of these trees. The wattled starling, commonly known as the locust bird or klein springhaan vogel {Creatophora carunculatus), is very fond of the red, fleshy appendage 88 BIRDS AND FORESTS of the hard, black seed of this wattle tree. In eating it the bird usually swallows the seed as well, and this passes unchanged through its intestines, and is voided. These starlings spread themselves in flocks over the veld and hill-sides in search of grasshoppers, leaf and root destroying insects, with the result that the acacia trees are springing into existence in the most unexpected places. If, for instance, the trees were allowed to grow unchecked for a few centuries a mighty forest would be the result. The local forester was puzzled to account for the presence of wattles which sprang up and flourished along the wire fences. The wattled starlings perch in thousands on these fences and void the seeds. Wherever these starlings are in the habit of congregating, masses of trees soon come into existence. A tree establishes itself perhaps owing to a seed which has passed through or been cast up from the crop of some fruit-eating bird. It grows to maturity, sheds its seeds, and its children grow up around it. Birds feed upon the berries or fruit, and drop the seed wider afield. Scores of isolated clumps of trees come into being. The sowing of the seed by birds, wind, and animals proceeds, and a great forest is the ultimate result. Our feathered guardians of the forest perform their duties well and faithfully. The woodpecker is Nature's policeman of the tree trunks and branches. Insects attack a tree and enter it ; fungi follow, and decay sets in. The woodpecker attacks the dead or dying wood and clears it out as neatly as a surgeon removes a 89 NATURAL HISTORY OF SOUTH AFRICA dangerous tumour or cancer, and the tree heals up the wounds and the danger is overcome. Woodpeckers rarely attack sound wood. When making a home in a tree trunk to rear a family, the bird usually attacks a decayed spot and indirectly does the tree a valuable service by removing the fungoid growth and dead wood, which gives the cells of the tree an op- portunity to form a shield of woody tissue against further attacks by fungi. The woodpecker possesses feet and claws specially adapted for climbing up, down, and round about the tree trunks and branches. The stiff tail acts as a support when the bird is at work pecking out decayed wood, or remov- ing dead bark in search of insects, their eggs, and grubs. Insects have a terrible time when these feathered policemen of the woods are plentiful. Those insects which bore into and breed in timber are practically immune from the attacks of other kinds of birds, and but for the onslaughts of the woodpeckers the wood-boring insects, which eat twice their own weight of wood each day, would multiply and ruin the forests and invade our orchards and gardens. 90 The Woodpecker eats the worm in the wood. BIRDS AND FORESTS These birds know their business, and they perform it to perfection. Every inch of the bark is inspected for traces of the presence of insects. A slight groove, a trace of gnawed wood, a tiny hole in the bark, afford clues which are energetically followed up. Meanwhile The tip of a Woodpecker's tongue. The tongue of the Woodpecker is round and worm-like. It curves round the base of the skull and over the top. It can be extended for some distance from the end of the bill. It is covered with a sticky mucus, to which insects adhere. Its tip is pointed and barbed. This wonderful tongue is used for picking insects from leaves, twigs, and bark. Also for penetrating the long winding tunnels of wood-boring larvae. The tip of the tongue is driven into the body of the grub, and the barbs prevent the victim from escaping. the bird is continually tapping the tree with its beak, and so acutely attuned is its sense of hearing that it knows instantly whether the wood is sound or in a condition of decay. If the latter, it rips off the bark, pecks away the decayed wood, and greedily swallows the borer grubs which have caused the mischief. 1 he cause being removed, the tree recovers. 91 NATURAL HISTORY OF SOUTH AFRICA In the Tzitzikama and Knysna forests the grub of a longicorn beetle does considerable mischief. The grubs bore into the hardest wood and utterly ruin it for timber purposes. These large borer grubs feed upon the wood until mature. When adult the grub bores its way to the surface and changes into a chrysalis, leaving a veneer of bark between its head and the outer world. After a period it emerges as a large winged beetle. The woodpecker is an adept at locating these chrysalides and, tearing off the pro- tecting bark, they are triumphantly drawn out and swallowed by the bird or fed to her brood. For twenty years I made a special study of birds in their native haunts, mostly in Natal. I lived with them in the fields, valleys, forests, and on the mountain tops, spending days and weeks at a time in the wilds, my sole companions being a pony, dog, and note-book. The stomachs of the different species of South African woodpeckers were examined at various times, and noted. The contents averaged about 70 per cent, beetles and their larvae. The great majority of these were wood borers ; others were destroyers of roots, leaves, buds, berries, and fruits. An average of 30 per cent, consisted of white ants (termites), caterpillars, moths, and various species of leaf- destroying insects. Never a trace of seed, berry, or fruit did I ever discover in the stomach of a woodpecker. Sound wood has no attraction for a woodpecker, for there are no insects there. The bird is out for food and not to expend its strength in useless labour. It 92 Life-history of a Moth {Nudaurelia isis) which is a pest of apricot, plum, and plane trees. 1 . Cluster of Eggs on a twig. 2. Larva or Caterpillar. 3. Chrysalis or Pupa. 4. Adult, or Imago Insect, which emerges from the chrysalis. This is typical of the life history of all moths and butterflies, viz. egg, caterpillar, chrysalis, moth, or butterfly. 93 NATURAL HISTORY OF SOUTH AFRICA pecks the rotten wood or removes pieces of dead bark to catch and devour the enemies of the trees ; it, in fact, attacks them in their strongholds. Woodpeckers, with the exception of the three species of American sapsuckers, are eminently beneficial to forestry, and deserve every possible encouragement and protection, therefore let no man raise his hand against a woodpecker. It is a bird which works in the interest of man all its waking hours, and asks no payment, not even a seed or a fruit. Yes, it is a slave indeed to man, but a willing slave, glad and happy to serve him. Man rewards it by shooting it down. His boys are allowed to make collections of its eggs, and the Kafir umfaans roast the nestlings and eat them. Man in his folly and ignorance has, in the past, imagined he could dispense with the services of the bird. Every time he made the experiment he failed miserably. With his costly pumps, his sprays, poison baits, and nets, the extent of his achievements are the saving of a limited number of trees. Man values lightly that which he gets for nothing 94 The Woodpecker rears her children in a hole in a rotten tree. BIRDS AND FORESTS — it was ever so. The forest birds, which keep the ravening hordes of insects in check in order that he and his kind might multiply and overspread the earth, are often mercilessly murdered for the despicable and savage purpose of adorning a woman's hat. Aye ! woman's vanity in this respect has cost the peoples of the world countless millions of money, and retarded the expansion of the human race and the opening up of new lands to an alarming degree. Yet our educa- tionists stand aloof when there is such a crying need for bringing enlightenment to the school children on this vastly important matter. There is no time, they say, for extra subjects to be taught. Children are already weighted down sufficiently with lessons. Yes, they leave school freighted with much so-called knowledge which is of little or no value to the vast majority of them in their struggle for existence. Poor, indeed, is their equipment for the grim struggle for existence which is before them. We simply blunder along — muddle through anyhow. Inquire of librarians of public libraries and they, one and all, will inform you that for one book of fact taken out by subscribers, five hundred books of fiction are read. This apathy and distaste for knowledge shown by the average adult is a clinching reason why knowledge of a practical kind should be taught to school children. The pond in which a frog dwells is the whole world to him, and so it is with the majority of human folk. They are shut up in a prison of their own making — the doors are unbarred, but they seek not to open them. Seek and ye shall find. 95 NATURAL HISTORY OF SOUTH AFRICA " A primrose by a river's brim, A yellow primrose was to him, And it was nothing more." A wild bird's feather in a woman's hat is an ornament to her and those who behold it, and nothing more. To the ornithologist it is something more. •He, in vision, sees a lovely pair of in- nocent birds chirping, singing, and frolick- ing in an excess of happiness while they busily build their home. He sees the mother bird brood- ing lovingly over her cherished eggs, while her mate sits on a twig near by and makes her vigil a joy indeed with his sweet song and loving presence. Ever and anon he takes his turn on the eggs, so that she may go forth for exercise and search the forest for insects to satisfy her hunger. Then the young birdies come, and the joy of that loving couple knows no bounds. From dawn to dewy eve they scour the forest and fields for insects to satisfy the voracious appetites of their children. While engaged in this loving service to his children the father falls, riddled 96 If you want birds in your neighbourhood, encourage them to breed by providing Nesting Boxes. BIRDS AND FORESTS with shot or a lead pellet in his heart, murdered for no worthier purpose than that his plumage may put a few pence into some human brute's pocket, and ultimately adorn a woman's hat. What of the widowed mate and the orphan children ? She, as a general rule, dies of a broken heart, and the babies perish miserably of starvation and cold. Aye ! truly through lack of the right kind of knowledge we do the most diabolically cruel things. Ignorance and cruelty go hand in hand surely. People, as a general rule, are not by nature cruel — it is ignor- ance, superstition, and erroneous beliefs which make them so. In 1905 the larch plantations on estates surround- ing Bassenthwaite Lake were seriously affected by the pest known as the large larch saw-fly. On one estate alone several thousand trees were destroyed. In 1907 a severe outbreak of the disease was observed on the Thirlmere plantation of the Manchester Corporation. It was pointed out that various species of birds destroy this pest, and accordingly 60 nesting boxes were hung in the trees as an experiment. Another 114 boxes were added in the following year, and 105 more in 1909. The numbers of tits, robins, and starlings increased considerably, and their young were diligently fed on the larvae of the saw-fly and long-horned beetle. The lower slopes of Helvellyn and the hill-sides on the opposite side of the lake, which a few years before were bleak and barren, were soon covered with young forest trees which resounded with the songs of birds. vol. 1. 97 7 The Bagworm is the caterpillar of a moth. It lives in a silken bag covered with lengths of straw sticks and even pebbles. The Bag- worm does immense damage in wattle plantations, and devours many other forms of vegetation. It has become a serious menace to the progress of South Africa. Birds are the chief enemies of this pest. They prey on it in the young stage ; certain species of birds draw out the caterpillar from its bair, while others feed on the moth. 98 BIRDS AND FORESTS Those who are practically connected with the busi- ness of forestry are keenly aware of the great good to arboriculture done by the woodpeckers. As the rooks, partridges, and starlings are the recognised guardians of pasturage and cattle lands, so woodpeckers are the custodians and caretakers of forest growth. If landowners, more particularly owners of woods, only knew and considered the great value of wood- peckers and their allies in continually cleansing their trees and freeing them from all vermin, they would not be satisfied until they had the feathered friends of their trees adequately protected, as is now being done in the United States. Wood, free from insects, is practically indestructible. Birds are the most powerful insect destroyers we have. In the best forests, and particularly those which have been specially planted, there is very little natural provision for the nesting of birds. This should be provided in the shape of nesting boxes of kinds suited to the needs of the species of birds which prey on tree- destroying pests. Unless this is done, plantations will continue to be ravaged owing to the limited number of birds which will be able to make their homes there. If suitable numbers of nesting boxes are affixed high up on the trees in various parts of the plantation, the birds will very soon find them out and utilise them. These measures have been employed with un- qualified success in controlling the destructiveness of insects in woods in certain parts of Europe and America. The Hainich Wood, for instance, south of Eisenach, in Germany, which is several miles in extent, 99 NATURAL HISTORY OF SOUTH AFRICA was stripped absolutely bare by the caterpillars of a small moth (Tortix viridand) in the spring of 1905. The neighbouring wood belonging to Baron von Berlepsch was untouched. In this wood some years previously over 2,000 nesting boxes had been affixed to the trees. Dr Gordon Hewitt, D.Sc, in writing on the subject, says : " It stood out among the remaining woods like a green oasis." BIRDS AND HEALTH Birds are a strong factor in checking the onslaughts of the disease microbe army. We now know that the great majority of diseases which attack man and beast are carried by insects. A blood-sucking fly inoculates man with the parasites which cause sleeping sickness. Other blood-sucking flies carry the germs of a number of deadly diseases to stock animals, and inoculate them direct by puncturing the skin with a sharp lancet. The common house fly is one of the foulest of feeders, and gets smothered with the bacteria of various diseases, and also voids them alive from its body. These germs it sows in our households and amongst our domestic animals. The house fly is now regarded as the chief cause of the spread of diseases in human communities and to the various members of households. The larva of a gad or warble fly produces 100 BIRDS AND HEALTH tumours under the skin, and in the car and nostril cavities of animals. Mosquitoes inoculate man with a parasite which causes malarial and yellow fevers. We strongly suspect it of being one of the agents in the spread of other diseases, both animal and human. Ticks are the transports which carry a variety of Donkey dying of ngana, or tse-tse fly disease. Blood-sucking flies are the cause of sleeping sickness in man and ngana in animals. They effectively check the spread of the human race in Africa. Ground-feeding hints eat the pupae, and fly-catchers and swallows snap up the flies. terrible diseases to household pets and stock animals. Fresh water snails are the hosts of the liver, fluke, and bilharzia parasite. A host of species and kinds of birds unknown to the majority of people are waging a relentless warfare on these disease-carrying insects. The maggots and chrysalides are devoured in countless numbers by water fowl, guinea-fowls, partridges, pheasants, quails, larks, plovers, crakes, rails, and dozens of other kinds of birds. The wagtails, fly-catchers, swallows, swifts, thrushes, warblers, sunbirds, bee-eaters, drongos, and IOI NATURAL HISTORY OF SOUTH AFRICA other birds wage war on mature blood-sucking blow and common house flies. White eyes, warblers, wrens, sun birds, and many other species hunt the mosquitoes from their lurking- Diagram of the Digestive Organs of the House Fly. 1 . The Proboscis or Sucker by which food is drawn up. 2. The Tube through which food passes to the crop. 3. Crop or Bag in which the food is stored. The rly vomits the food, a drop at a time, on whatever it may be sitting on. It is then sucked up a second time and passes into the real stomach, where it is digested. 4. The Stomach. 5. Intestines. 6. The Vent. Disease microbes pass through the fly's digestive tract and issue forth alive. They cling to the fly's feet and body. Flies, in consequence, are spreaders of diseases. Birds are their enemies. places amidst the foliage, and feed upon them. The night jar, miscalled a night hawk, attacks them on the wing by night. This bird has a capacious stomach and extremely rapid digestion, and a single bird can account for at least a thousand mosquitoes in a night. Who has not seen the swallows, martins, and swifts at sundown skimming low over the ground until night 102 BIRDS AND HEALTH sets in ? Arc they at play ? By no means. The) are doing battle for us against the hosts of mosquitoes and other night-flying insects which are emerging from their hiding-places. What of the tick — the scourge and terror of the stock farmer and dairyman ? Here, again, the birds render sterling service. The ox - peckers or tick birds are specially evolved for the purpose of removing ticks from large animals, for the nature of their toes Tse-tse fly disease is fatal to dogs and all stock animals. Guinea-fowls, partridges, pheasants, and thrushes scratch up the pupce of the flies and eat them. enables them to climb all over their host — down and up its legs, neck, and round its abdomen. Every part of the hide is inspected. While the animals are lying at rest in the fields, the white egret, with dignified stride, walks round the beast and pecks off the blood-gorged blue female ticks which would, if left alive, have laid thousands of eggs- The starlings, larks, plovers, crakes, wagtails, and other birds search the ground in the close vicinity for any gorged female ticks which have left their host and are seeking a suitable spot in which to lay their eggs. 103 NATURAL HISTORY OF SOUTH AFRICA Out in the fields the partridge, plover, lark, and other ground birds peck the ticks from the grass stems. Thus by waging incessant war on the insects which carry disease microbes to man and beast, the bird is rendering a service which cannot be overestimated. Should a few of them, when driven by hunger, take a little grain, is it robbery ? Have we the moral right to brand them as impudent thieves, and cry aloud for their extermination ? If it were not for the services of the bird in catching and destroying disease-producing insects, man would make no headway. It is question- able whether he could even manage to exist, except in a miserable way and in very limited numbers. The United States Government, on the accession of Mr Wilson as President, issued an order forbidding, under heavy penalties, the destruction of any wild bird in the Panama Canal zone. This was real Solomonic wisdom, and it makes one wish other governmental bodies were as wide awake in their efforts to reduce the ravages of diseases. Bilharzia is a terrible scourge of the human race in Africa, Southern Asia, and even South America. It is caused by a circaria worm of microscopic size which lives in fresh water streams, ponds, and marshes. It enters the body usually when bathing, through the human skin and the mucous membranes of the mouth and throat, and produces an incurable disease. It has been ascertained that snails and other fresh water molluscs, crustaceans, and the water-dwelling larvae of various winged insects act as intermediary hosts 104 BIRDS AND HEALTH No. 1. — A bird shelter with open front and sides to hang on wall. No. 2.— A bird shelter and feeding box. Swings with the wind. Glass at back. For garden or balcony. No. 3. — Open feeding tray. A nesting box can be fixed to the top. For garden or balcony. I05 NATURAL HISTORY OF SOUTH AFRICA for this clrcaria worm. Should the eggs enter the water from the urine or faeces of an infected person or animal, they quickly hatch, and the larvae attack and enter the bodies of these hosts. Here they complete their cycle of development, and when mature leave their lowly host and emerge into the water. Unless able to enter the body of a human being or some other warm-blooded animal, they perish in about thirty-seven hours. So here, once again, we have a valuable ally in the bird. To reduce or eradicate the disease, the intermediary hosts of the worm must be attacked and destroyed. Large numbers of species of birds feed greedily upon fresh water molluscs and other forms of aquatic life. Others devour the winged insects which pass the larval period of their lives in water. In our struggle against this terrible scourge which is prematurely killing off or making physical wrecks of thousands of people, the water-frequenting birds are our greatest allies. The microscope reveals the alarming fact that the germs of that terrible disease, sleeping sickness, breed in practically all the larger wild animals. They are immune to sleeping sickness ; but a blood-sucking fly carries the germs from these to both natives and Europeans. The disease has swept off the human populations of entire districts, and it is threatening to make tropical Africa unfit for human habitation. It may be necessary to kill the wild animals, but they are not really guilty. True, they unconsciously carry the germs in their blood, but the arch-criminals are the women who wear the plumes of wild birds in their 106 BTRDS AND TTEATTTI hats, and the men who kill grame birds. The bird gai Is feed on the larvae of the blood-sucking fly, and when they are persecuted and killed, the fly multiplies and spreads sleeping sickness far and wide. A terrible price surely to pay for vanity, so-called sport, and the pleasure of feasting on the bodies of our feathered allies. When a man is murdered in our midst, we demand that the murderer be punished. Yet we are indirectly killing thousands of people by our selfish- ness and indifference. Men and domestic animals are dying annually in multitudes from preventable diseases, and we heed not. Men of science are poorly paid, discouraged, and a deaf ear is often turned to their grave warnings and expert advice, except when the knowledge can be utilised for selfish individual financial gain. " And so the dreadful massacre began ; O'er fields and orchards, and o'er woodland crests The ceaseless fusillade of terror ran ; Dead fell the birds, with bloodstains on their breasts, Or wounded, crept away from sight of man, While the young died of famine in their nests : A slaughter to be told in groans, not words, The very St Bartholomew of birds ! " Longfellow. 107 NATURAL HISTORY OF SOUTH AFRICA BIRDS AND WEEDS " By the sweat of thy brow thou shalt earn thy daily bread." This is as it should be, for Nature has no use for those who neither work with their brain nor their hands. The ignorant boor works like an ox to produce a small return. The intelligent man avails himself of all manner of things to lighten his labours, and to enable him to get the largest possible return for his energy. The time, energy, and money dissipated in warring against weeds are vast. Out in the wilds, weeds serve good and useful purposes, but in cultivated lands they are a pest ; and, should we relax our onslaughts, they overspread our lands and crowd out the crops. To prevent the choking to death of the produce of our fields, we are obliged to constantly attack the weeds with harrows, hoes, sickles, and ploughs. The labour is never-ending, for the land is full of weed seeds which retain their vitality for years. It is impossible completely to free cultivated lands from weeds even by constantly destroying them before they mature their seed. Weeds have evolved a protection against such a contingency. Every plant struggles as purposefully and as intelligently to safeguard its species against extinction as does any form of animal life, including man. Many kinds of weeds provide their seeds with various ingenious contrivances by which they are 108 OlK of Nature's Bird p ho I id us typus). Snake Park. enemies— the Boomslang or Tree Snake (Dts- Photo from live specimens in the Port Elizabeth 109 NATURAL HISTORY OF SOUTH AFRICA made so buoyant that even a gentle breeze will waft the seeds away through the air for miles. Others are provided with hooks for catching hold of the hair and wool of animals, and so on. The farmer by unremitting labour may succeed in keeping his lands comparatively free from weeds, but so long as they are allowed to mature and shed their seed along the fringes of his fields and in his neighbourhood, he will have his lands resown with them. It would not pay him to attempt to systematically destroy all the weeds on a large farm. Should he try, he and his employees would have little or no time to do anything else. Nature, however, has not unduly favoured the weed in its struggle for existence. A host of enemies attack it. These are the seed-eating birds. From afar they gather and feed upon the seed when it is reaching maturity. As a general rule, a seed-eating bird makes two good meals a day if undisturbed. Small birds, such as vinks, will eat upwards of an ounce of weed seeds a day. When the seed is ripening it is eaten direct from the weed, and at other times it is sought for upon the ground. Even the much perse- cuted dove destroys immense quantities of weed seeds. It is very partial to the seeds of the weed commonly known as mistbreedie (Amaranthus paniculatus). I came upon a young farmer one day lying in a pit. He informed me he was shooting off those pests, the vinks (weaver birds). He had already shot thirty or forty on a portion of a harrowed field which had 1 10 BIRDS AND WEEDS already been planted with mealies. I asked permission to open the crops of those he had slain. Every crop contained a variety of weed seeds and larvae of various insects. The average quantity of weed seeds consumed by ordinary birds such as weavers, widow birds, and bishop birds, all of which are popularly termed " vinks," amount to about 25 lbs. per bird every year. Doves will eat their own weight of weed seeds every day if the seeds are sufficiently abundant. The majority of game birds devour immense quantities of weed and water grass seeds, as well as mature bulbs which rob the soil of moisture and plant food, and often seriously reduce the stock- feeding value of land. I have found as many as 4 ounces of weed seeds in the crop of a partridge. The average crop content of one of these birds at midday is 2^ ounces of seeds of weeds, cut-worms, beetles, grasshoppers, and other insects. Guinea- fowls perform an immense service in eating weed seeds, locusts, locust eggs, grasshoppers, caterpillars, and larvae which live underground, and which, in conse- quence, escape the attentions of the bulk of other species of birds. The guinea-fowl, however, does considerable mischief on newly-sown lands, for it is able to eat j, lb. of grain at a feed. Out in the wilds, and especially in game preserves, it renders great service in preying upon the larvae of blood-sucking and other flies, gorged female ticks, etc., and is therefore a factor in checking animal plagues. Game birds are of great economic value in our 1 1 1 NATURAL HISTORY OF SOUTH AFRICA war against those two hostile armies — the weeds and insects. These species of birds are of far greater value to a farmer alive and out on his lands, than in the pot. Of all the game birds the quail is the best weed destroyer. The quail is ranked in the first class among birds which are useful to man. . Some authorities con- sider it is more useful than any other bird. During the spring and summer months it wages a terrible war on insects and their larvae. With unerring instinct it seeks out their hiding places, and with beak and claws exposes them to view. Morning and evening it is busy hunting these pests in the cultivated fields and pasturage. Quails feed greedily on insects so long as they are plentiful, and only resort to a diet of grass and weed seeds when insects are scarce. The quail works for the farmer right royally against the insect hordes, from the time the crops are sown in the spring until they are reaped in the autumn. When the fertile male and female termites (white ants) fall to the ground and meet to found a new colony the quail seeks them out and devours them. As winter approaches insects become increasingly scarce, and the quail then sustains itself almost and often entirely on the seeds of weeds. The seeds of several species of the most rapidly growing and obnoxious weeds are eaten greedily by the quail. This bird breeds during the spring and summer time, and lays from six to a dozen eggs. The chicks are active from birth, like those of the domestic fowl, 112 BIRDS AND WEEDS and the number of insects, larvae, and eggs they destroy in a season is uncountable. Many of the insects preyed upon are of the kinds which pass the larval stage of their lives underground. These grubs do immense damage by eating the roots of cultivated crops, grasses, seedling trees, and shrubs. The majority of species of birds search for insects on the ground, on vegeta- tion, and in the air. The quail takes them both from above ground and underground, and thus renders man a double service. The report of the United States Biological Survey says : — " It is reasonable to suppose that in the States of Virginia and North Carolina from ist September to 30th April there were four quails to every square mile of land. The crop of each bird holds half an ounce of seed, and is filled twice a day. Since at each of these two daily meals harmful weed seeds con- stitute at least half the contents of the crop, half an ounce daily is consumed by each bird. On this basis the total consumption of harmful weed seeds by quails from September to April in Virginia and North Carolina amounts to 1,341 tons." As destructive insects form about one-third of the bird's food from June to August, quails consume 341 tons of these pests in these States within those two months. Few, if any, birds other than the quail will eat that terrible pest, the potato bug or Colorado beetle. The quail, however, has a special liking for it and eats it greedily, and will abandon all other food so long as plenty of these beetles are obtainable. If for no vol. t. 113 8 NATURAL HISTORY OF SOUTH AFRICA other reason than this the quail should be held sacred. The fact that the dreaded scourge, the cotton ball weevil, has not annihilated the cotton crops of America and brought red ruin to tens of thousands of people, is largely due to the services rendered by the quail in keeping these insects in check. The countryside is diligently searched by the parent birds for Caterpillars to satisfy the voracious appetites of their children. This sketch shows the mother bird in the act of placing a Caterpillar in its youngster's throat. Here we have a bird which renders man four great services : — i. It safeguards the vast cotton plantations of the world. 2. It polices the potato crops on which the human race largely depends for food. 3. It wages war on the hordes of insects that attack the crops and pasturage. 4. It helps very largely in keeping noxious weeds in check. Unlike many other birds, it takes no wages in 114 1. Secretary Bird in the act of killing a snake. When the snake is large and venomous, such as a Cobra, or Puff Adder, the bird employs various tactics. 2. Nest of a Black Crow on the top of a telegraph pole. There is a single wire line between Springfontein and Clanwilliam, and a special man is employed to ride alongside the line to clear the poles of crow's nests which cause short circuiting. (Photo by Sir Frederick Smith.) "5 NATURAL HISTORY OF SOUTH AFRICA grain or fruit. It works in the interests of man all the time without payment. Every live quail on a man's land is a valuable asset. Yet, because the little creature has a plump, juicy body, it is mercilessly hunted with dogs and shot down. When will economic Natural History be taught to our children ? If other subjects bar the way, then away with some of them and make place for the knowledge every boy and girl should possess. The quail stands in the front rank of birds which should be protected by law. If I were asked to choose a dozen species of birds which I considered served man best, the quail and his first cousin the hemipode or button quail would be two of them. There are many ways of increasing the productive- ness of the land and bringing a greater measure of prosperity to a country, but there is no greater than the conservation of bird life. I examined the crop of a rook (black crow) which was shot at sundown on a stock farm. There were 156 wireworms, 32 blue female ticks, and the larvae of other pests in its crop. I have stayed at many stock farms at times, and the owners were unanimous that the rook rendered valuable services. They assert it picks up the gorged female ticks which drop from the cattle preparatory to crawling into suitable cover to deposit from 2,000 to 18,000 eggs ; it digs up the larvae of beetles which prey on the roots of pasture, plants, and grasses ; and it devours locusts, grasshoppers, and a variety of other pests which eat the vegetation. 116 BIRDS AS SCAVENGERS The South African rook is usually seen in pairs, or a family consisting of the parents and the previous season's brood, and each pair have a certain area over which they rule, and they remain in possession unless driven out by another pair of birds. Rooks, however, often assemble on cornfields in numbers and eat a portion of the newly planted or sprouting corn, but it is very doubtful if the quantity of corn they eat counter- balances the destructive insects they devour during the rest of the year. It would be far more profitable for the farmer to employ native boys to patrol his fields during this short period than to poison the rooks. BIRDS AS SCAVENGERS Vultures are the feathered scavengers of Nature. Their mission in life is to eat up the dead bodies of animals which, if allowed to rot away, would poison the atmosphere and sow disease microbes broadcast. The diseased flesh, when swallowed by a vulture, is rapidly digested, and all the harmful bacteria are destroyed by its gastric juices. In the past, before the advent of man into South Africa, the vulture {Aas Vogel) and the white - necked raven (Ring-hals) rendered sterling service in keeping disease epidemics in check. When a plague broke out in a herd of antelopes, for instance, the vultures and ravens gathered in thousands, ate up the victims, and left only the bones and splashes 117 NATURAL HISTORY OF SOUTH AFRICA of blood which the bright South African sun rapidly sterilised. In this way epidemics of disease were checked, and the animals of the country saved from utter destruction. During the many terrible epidemics of disease which have swept the stock farmers' flocks and herds, the vultures and ravens rendered valuable services in devouring the carcasses with which the veld and hill- sides were strewn. That terrible scourge of the stock farmer, gal-lamziekte, has been shown to be due to cattle eating bones with dry, rotten flesh on them, and also to bones of animals whose bodies have decayed. By eating the flesh and picking the bones clean these birds reduce the prevalence of this disease. Vultures and ravens still do good and useful service, especially in the native territories and north- wards right through Africa. European farmers, however, are rapidly learning how to cope with stock diseases chiefly through the medium of the various farmers' journals, and instead of leaving an animal to rot on the veld and con- taminate the grass, it is deeply buried. The Govern- ment Veterinary Department is now so efficient that epidemics have little chance of sweeping through the entire country as they used to do in " the good old days," when there was no concerted action taken, and little or nothing was known by farmers about stock diseases and their prevention. The vulture, owing to the ever-increasing scarcity of carrion, is being forced by hunger to attack lambs and sheep. It is a cowardly bird, and fears an encounter 118 H9 NATURAL HISTORY OF SOUTH AFRICA even with a sheep under normal conditions ; but when the ewe is in the act of lambing, these birds sometimes attack and destroy both it and the lamb. Many stock farmers, therefore, shoot it at sight or poison it. It is easy, however, to provide a shepherd when the ewes are lambing. The majority of farmers have shepherds for their flocks at all times. The necessity for the scavenging services of the vulture and carrion crow grows less every year. With the advance of science and education, we in the more settled parts could afford to dispense with the vulture. When carrion is plentiful the vulture will, however, rarely attack a living animal, even when quite helpless. I have many a time seen them in their hundreds watching for days a dying ox, sitting in rows like a regiment of soldiers waiting for the animal to die. I once saw fifteen vultures watch a helpless dying sheep for two days, but none of them approached close to the animal until it died. They then rushed in and squabbled furiously over the carcass. The aas vogels usually assemble and sit like a regiment of soldiers a short distance from a carcass, if it be a large one like that of an ox or horse, waiting until decomposition is well advanced, for two reasons : (i) They prefer decayed to fresh meat ; (2) the hide is more easily broken by their beaks, and the meat can be torn off with little effort. Sometimes, when the vulture is not too heavily laden with food, it flies off, and being consumed with thirst, alights, drinks too greedily, and often vomits a portion of the putrid meat, seething with disease microbes, into the water which 120 BIRDS AS SCAVENGERS stock animals may subsequently drink. It is a much safer plan to bury the carcass of an animal which has died of disease than to let vultures intern it, but the former cannot always be done, for obvious reasons. In some parts of India the human dead are placed on top of flat towers, and in a very short space of time the vultures pick the bones clean. In Northern Africa and Arabia the people of the villages are exceedingly insanitary in their habits, and if it were not for the sanitary services rendered by the vultures and the hyaenas, pestilence would decimate the people. The gull is one of Nature's finest feathered scavengers. The vulture and the raven are the sanitarians of the hills and veld, and the gull does a like service along the sea coasts. The gull is a surface feeder, and its mission in life is to eat up dead animal life floating on the sea or cast up by the tide. It occasionally destroys fish, but the harm it does the fishing industry amounts to nothing in proportion to the colossal services it renders as a scavenger. Now and then when a shoal of small fishes are being hunted by carnivorous fish and in their terror come to the surface or into the shallows, the gulls will snap up a few. At other times the cormorants assemble in large numbers, and, forming themselves in crescent formation, deliberately drive a shoal of small fishes into the shallows. Gulls on these occasions hover overhead and snatch up some of the fish, but the number they secure in this way is trifling. Fishermen's stories about the gull being a great devourer of live fish are not true. They have a strong NATURAL HISTORY OF SOUTH AFRICA dislike to picking up a fish alive even when it is lying helpless on the shore. During the Government experimental nettings which I carried out in the Zwartkops tidal river during 191 5-1 6, the gulls hovered round in large numbers and ate up any dead fish which were left on the banks. Sometimes a gull would seize a small fish, and when in mid-air, if the victim showed signs of life, the gull instantly dropped it. On other occasions I have seen mullet leap on to the shore when pursued by a large fish, and watched the gulls swoop down and stand a few yards away and not attempt to seize the fish until its struggles had ceased. At Algoa Bay the black-backed gulls {Larus dominicanus) do magnificent scavenging work by eating up all the fish offal cast upon the sand and in the water by fishermen. Some years ago the beach to the south of Port Elizabeth was thickly strewn with dead fish, and the gulls gathered from afar and ate them up. The denizens of the ocean are subject to attacks of epidemics of diseases, as are their more evolved kindred of terra firma. Gulls, by eating the bodies of those that die of disease, are largely instrumental in keeping fish diseases in check. Gulls are therefore guardians of the health of the ocean's population, as well as acting as scavengers of the seashores and dirty, insanitary villages adjacent to the seashore. When pressed for food, gulls penetrate inland for miles in search of grass- hoppers, locusts, and caterpillars. Black-backed gulls, which I kept in captivity for 122 BIRDS AS SCAVENGERS observation purposes, were promiscuous feeders ; they devoured anything from caterpillars to offal, carrion, or bread. Gulls at low tide destroy numbers of small marine Crustacea and other creatures which are enemies to the eggs and fry of fishes. Notwithstanding anything fishermen may say to the contrary, the gull is a bird which deserves every possible consideration by us. But in spite of the immense services rendered us by the gull, these birds are allowed to be slain in hundreds of thousands in various parts of the world to supply the needs of the millinery trade. For instance, on a certain island in the Pacific Ocean 200,000 gulls were murdered for the sake of their snowy white breast feathers. These gulls, at the time, were breeding, but the fiends who butchered them were in no way deterred in the work of slaughter by qualms of conscience for being the direct cause of hosts of nestling birds dying of starvation. Such is an instance of the terrible cruelties inflicted on our feathered friends and allies — all to gratify the vanity of woman. The plumage of a wild bird in a woman's hat has been aptly styled " the badge of cruelty," and it should certainly be so regarded by all humane and sensible people. The gull has one serious drawback from our point of view. It steals the eggs of other sea birds and kills the nestlings when it gets the chance. At St Croix Island in Algoa Bay it kills considerable numbers of penguin chicks. 123 |.a -a i — i (/3 __i ft % -0 .£ .S ■ n-l 'C "C w ^ <+H