IOWA BIRD LIFE PUBLISHED QUARTERLY BY THE IOWA ORNITHOLOGISTS' UNION VOL, XVII MARCH, 1947 NO- 1 OFFICERS OF THE IOWA ORNITHOLOGISTS' UNION President — Charles C. Ayres. Jr,, Ottumwa. Iowa Vice-President — Dr. Robert F. Vane, Cedar Rapids. Iowa Sec’y-Treas — Miss Lillian Serbousek, 1226 Second St. S.W, Cedar Rapids, Iowa Librarian— Dr. Warren N. Keck. Cedar Rapids, Iowa Editor— Fred J. Pierce, Winthrop, Iowa Executive Council: John C. W. Bliese, Cedar Falls, Iowa Dr Peter P. Laude, Iowa City, Iowa Mrs, Janet DuMont, Des Moines, Iowa The Iowa Ornithologists* Union was organised at Ames. Iowa, February 28. 1923. for the study and protection of native birds and to promote fraternal re- lations among Iowa bird students. The central design of the Union's official seal is the Eastern Goldfinch, desig- nated State Bird of Iowa in 1933. Publications of the Union : Mimeographed letters, 1923-1928 ; ‘The Bulletin, 1 1929-193G ; 'Iowa Bird Life.’ beginning 1331, SUBSCRIPTION RATES: $1,00 a year (includes membership dues). Single copies 25c each. Claims for missing or defective copies of the magazine should be made within six months of date of issue. Keep the Editor informed of your correct address. EDITORIAL AND PUBLICATION OFFICE WINTHROP, IOWA Entered as second-class matter February 9, 193-2, at the post office at Winthrop, Iowa, under the Act of March 3, 1879. IOWA BIRD LIFE— XVII, 1947 O THE SPRAGUE'S PIPIT From a painting by E. W. StefFen. I I SPRAGUE'S PIPIT AT HOME • ) o THE SPRAGUE'S PIPIT AT HOME By WILLIAM YOUNGWORTH SIOUX CITY. IOWA Once again we made the long trek to Mr, E. T. Judds’ big south pasture in the Big Coulee country near Cando, Towner County, North Dakota, during the last two weeks of July, 1939. This time we arrived later in the summer to get some first-hand information on the elusive prairie dweller, the Sprague's Pipit. Various other trips to North Dakota had always been made too early in the summer to find this species settled in their summer habitat, for apparently this bird is the last of the prairie-dwelling species to get settled on its nesting area A bad prairie fire the previous fall had burned off this pasture and had taken all the wooden fence posts in stride. For this reason, stock was not pastured here during the summer of 1939, and the prairie grasses had grown fairly rank, despite a definite lack of rain. Thus bird life had been given a break for one season at least, although some of the earlier nesting species must have been hard pressed to find sufficient dead grass clumps to nest in, before the new green growth was heavy enough to hide a nest. How- ever. by the last week in July, we found an abundance of the following species: Baird’s Sparrow, Savannah Sparrow, Clay-colored Sparrow. Chest- nut-collared Longspur, Lark Bunting, Meadowlark. Horned Lark and sev- eral species of ducks. We were not fortunate in 1939 in finding any Prairie Chickens on this area. Sprague’s Pipit is a plain, brownish-colored bird, with white outer tail feathers, which somewhat confuses them with the longspurs and Vesper Sparrows, The flight of the bird is rather dashing and wild, strangely similar to that of small shore birds. The long, pointed wings suggest the lark family and add to the illusion of a larger bird than is really before you, for the bird in the hand is small and of sparrow size. The pipit suddenly springs from the grass, usually at some distance, and mounts straight up into the heavens above, Upon reaching the desired height, the bird begins swinging around in large circles, constantly flying, sailing or coasting in an undulating manner. All during this flight, it gives the sweet, tinkling song, sounding like tiny bells tinkling in a light breeze. The song comes floating down to the breathless listener on the green prairie far below. If is hard to believe w-hat heights the bird attains in its flights. It cannot be compared to the high-flying hawks and waterfowl, but never- theless great heights for a small bird so that the watcher has to look sharply with lQx binoculars to locate the flyer, and look still sharper to keep the songster in sight for the most thrilling part of the whole performance — the plummet to the prairie. By using 24x binoculars, the observer could nicely pick out the flying singer, but had to move quickly as the field of vision was limited and a sudden turn of the bird caused it to be lost to view, and then another search would be necessary to find this little dive-bomber. The song period of the Sprague’s Pipit varies in length. When it Lasts nearly one-half hour, as it frequently does, it is quite a strain on the neck of the patient watcher below. One particular pair of pipits was watched closely for long periods, and I found that the song period of the male bird varied from 20 to 30 minutes. This is quite a sustained flight considering that the average rest period between flights for this one bird was about five minutes after which he would again fly upward for the clouds. One i 4 IOWA BIRD LIFE — XVII, 1947 male sojourned in the sky for 25 minutes, then descended- Without landing he skimmed along the ground for several hundred feet and again shot up- ward into the heavens. This second flight was terminated 15 minutes later. Flight observations were made during both cloudy f almost drizzly! weather and in bright sunlight. It seemed that the birds possibly soared a little lower during the cloudy periods. During these latter periods the birds appeared very black against the sky. but when observed in the sunlight the pipit became a silvery object floating beautifully against a background of fleecy clouds. Only diligent watching of the bird's every move rewarded the student with the dashing plunge to the earth. If one lost sight of the flyer while shifting tired muscles, it might be several minutes before he again could chart the bird's course against the white clouds, and in the meantime (the writer found this true many times) the pipit had plunged to earth and left him looking up at an empty sky. The Sprague's Pipit suddenly stops its undulating flight song and dives