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The Condor, Volume 83, Number 4 (1981)

Publication Information


Geographic Variation in Vocalizations and Evolution of North American Pine Grosbeaks. 277-288.
Curtis S. Adkisson.
A Comparison of Vocalizations of Western Gulls (Larus Occidentalis Occidentalis and L. O. Livens). 289-301.
Judith Latta Hand.
Roost Selection By Spotted Owls: An Adaptation to Heat Stress. 302-309.
Cameron W. Barrows.
Recent Publications. 309-400.
Nest Site Selection in Eastern and Western Kingbirds: A Multivariate Approach. 310-321.
David I. Mackenzie, Spencer G. Sealy.
Mate Change and Reproductive Success in the Lesser Snow Goose. 322-327.
F. Cooke, M. A. Bousfield, A. Sadura.
Feeding Competition Between Laughing Gulls and Herring Gulls at a Sanitary Landfill. 328-335.
Joanna Burger.
Foraging Behavior of the Acorn Woodpecker in Belize, Central America. 336-339.
Peter B. Stacey.
Wintering Ecology of Thrashers in Southern Texas. 340-346.
David H. Fischer.
Bird Populations Before and After Wildfire in a Great Lakes Pine Forest. 347-354.
Steven Apfelbaum, Alan Haney.
Respiratory Gas Exchange and Growth of White Tern Embryos. 355-361.
Ted N. Petit, Gilber S. Grant, G. Causey Whittow, Hermann Rahn, Charles V. Paganelli.
Comparative Patterns of Nestling Growth in White-Crowned Sparrows. 362-369.
James R. King, Joel D. Hubbard.
Geographic Variation in Mid-Winter Body Composition of Starlings. 370-376.
Charles R. Blem.
Mobbing Calls of the Phainopepla. 377-380.
Daniel W. Leger, Laura F. Carroll.
News and Notes. 398-400.
Statement of Ownership, Management and Circulation. 400.
The Bulletin Board. 400.
Annals of the Cooper Ornithological Society. 401-402.
Index to Volume 83. 403-412.

Short Communications

Yolk Formation and Oviposition in Captive Emus. 381-382.
Katherine V. Hirsch, C. R. Grau.
Adaptive Significance of Ear Tufts in Owls. 383-384.
Michael Perrone, Jr..
What Is the Song of the Black-Capped Chickadee? 384-386.
Millicent S. Ficken.
First Nesting Record of the Peregrine Falcon in Ecuador. 387.
J. Peter Jenny, Fernando Ortz, Michael D. Arnold.
A Nest of the Rufous-Vented Ground-Cuckoo (Neomorphus Geoffroyi). 388.
Paul Roth.
Nest Predation of Abert's Towhees By Coachwhips and Roadrunners. 389.
Deborah M. Finch.
Bylaws of the Cooper Ornithological Society. 390-397.
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