Part 32

Breeding schedule.--Twenty-nine records of breeding span the period April 21 to September 10 (Fig. 9); the modal date for first clutches is May 5.

Number of eggs.--Clutch-size is 4 eggs (4.1, 3-5; 21).

Nests are placed about 10 inches high (ranging from ground level to three feet) in or among coralberry, osage orange, elm, oak, rose, and, once, peony.

=Chestnut-collared Longspur=: Calcarius ornatus (Townsend).--This was formerly a summer resident in western Kansas, in short-grass habitat. The only known nesting area was in the vicinity of Ft. Hays, Ellis County. The species is to be looked for in prairie with short grass type of vegetation.

ACKNOWLEDGMENTS

Many persons have contributed field observations such as dates of arrival and departure for migrants, and the various activities of the breeding cycle for most of the species here discussed. An alphabetic listing of their names follows.

Galen Abbot, Ruth Abbot, Ted Anderson, Ted F. Andrews, Jon Barlow, Amelia Betts, Grace Thompson Bigelow, L. C. Binford, Bessie Boso, William J. Brecheisen, J. Walker Butin, L. B. Carson, Mrs. Eunice Dingus, Charles S. Edwards, A. S. Gaunt, Sue Griffith, Mrs. Mary F. Hall, J. W. Hardy, Stanley Hunter, Katherine Kelley, E. E. Klaas, W. C. Kerfoot, John A. Knouse, Eugene Lewis, Eulalia Lewis, John Lenz, Nathan H. McDonald, Marno McKaughan, Merrill McHenry, Robert M. Mengel, Robert Merz, Jim Myers, Mary Louise Myers, Mrs. Kathryn Nelson, T. W. Nelson, Steven Norris, Dan Michener, P. W. Ogilvie, Gary C. Packard, Mrs. Marion J. Mengel, Dwight Platt, William Reynolds, Frank Robl, S. D. Roth, Jr., Nancy Saunders, Richard H. Schmidt, Marvin D. Schwilling, T. M. Sperry, Steve Stephens, Max Thompson, Fr. Matthew Turk, Emil Urban, J. W. Wallace, H. E. Warfel, A. W. Wiens, Mrs. Joyce Wildenthal, George Young, and Richard Zenger.

LITERATURE CITED

ALDOUS, S. E.

1942. The white-necked raven in relation to agriculture. U. S. Fish and Wildlife Serv., Research Rep. 5:1-56.

AMERICAN ORNITHOLOGISTS' UNION, CHECK-LIST COMMITTEE

1957. Check-list of North American Birds (Lord Baltimore Press, Baltimore), xiii + 691 Pp.

BAKER, J. R.

1938. The relation between latitude and breeding season in birds. Proc. Zool. Soc. London, 108 (A):557-582.

BROWN, F. A., JR.

1960. Response to pervasive geophysical factors and the biological clock problem. Cold Spring Harbor Symp. Quant. Biol., 25:57-71.

COCKRUM, E. L., JR.

1952. Mammals of Kansas. Univ. Kansas Publ. Mus. Nat. Hist., 7:1-303.

DAVIE, O.

1898. Nests and eggs of North American birds (David McKay, Philadelphia). (vi) + 509 Pp.

DAVIS, T. A. W.

1953. An outline of the ecology and breeding seasons of birds of the lowland forest region of British Guiana. Ibis, 95:450-467.

FITCH, H. S.

1958. Home ranges, territories, and seasonal movements of vertebrates of the Natural History Reservation. Univ. Kansas Publ. Mus. Nat. Hist., 11:63-326.

GOODRICH, A. L., JR.

1946. Birds in Kansas. Rept. Kansas State Brd. Agric, 44(267): 1-340.

GOSS, N. S.

1891. History of the birds of Kansas (G. W. Crane Co., Topeka). 692 Pp.