Contents
Singing Habits of Traill's Flycatcher in Northwestern Montana
Winton Weydemeyer
The Timing of Maternal Behavior of the Broad-tailed Hummingbird Preceding Nest Failure
William A. Calder
Locomotor Mechanisms in North American Ducks
Robert J. Raikow
Effect of Temperature on Energy Requirements and Northward Distribution of the Black-bellied Tree Duck
Brian W. Cain
Publication Notes and Notices
Merrill Wood
Food Manipulation by Young Passerines and the Possible Evolutionary History of Impaling by Shrikes
Susan M. Smith
Molt of Juvenile White-eyed Vireos
William G. George
The President's Page
Kenneth C. Parkes
Ornithological News
Wilson Bulletin
Ornithological Literature
Wilson Bulletin
Proceedings of the Fifty-fourth Annual Meeting
James Tate Jr.
Covers
Back Matter (PDF)
Wilson Bulletin
Front Matter (PDF)
Wilson Bulletin
General Notes
Promiscuous Mating Behavior in the White Ibis
James A. Kushlan
Marsh Hawk Catches Fish
Noble S. Proctor
Some Food Preferences and Aggressive Behavior by Monk Parakeets
David B. Freeland
Response by a Long-eared Owl to Barred Owl Calls.
John W. Fitzpatrick
Use of Marked Prey to Study Raptor Predation
Donald W. Kaufman
Food and Foraging Ecology of the Chestnut-bellied Cuckoo
Alexander Cruz
Interordinal Copulation on Coastal Venezuela
Amdeo M. Rea
House Sparrow Dispossesses Nesting Eastern Kingbirds
Michael R. Hurber and James B. Cope
Wing-flashing in the Black-and-white Fantail (rhipidura Leucophrys)
Burt L. Monroe Jr.
The Occurrence of Unusually Small Eggs in Three Species of Songbirds
Stephen I. Rothstein
Physical Combat in the Brown-headed Cowbird
Peter L. Mclaren
Further Notes on Rosy Finches Wintering in Utah
William H. Behle
Leaf Bathing in Three Species of Emberizines
Luis F. Baptista
The Purple Finch Nests in Central Ohio
Maurice L. Giltz