Contents
A New Species of Hummingbird from Peru
John W. Fitzpatrick, David E. Willard, and John W. Terborgh
Vocal Repertoire and Its Possible Evolution in the Black and Blue Jays (cissilopha)
John William Hardy
Ecology and Behavior of the Galapagos Rail
Alan B. Franklin, Deborah A. Clark, and David B. Clark
Experiments on Population Regulation in Two North American Parids
Fred B. Samson and Stephen J. Lewis
Habitat Use by the Blackpoll Warbler
Douglass H. Morse
The Ontogeny and Organization of Comfort Behavior in Adelie Penguins
Marc Bekoff, David G. Ainley, and Anne Bekoff
Agonistic Behavior in Short-billed Dowitchers Feeding on a Patchy Resource
Elizabeth P. Mallory and David C. Schneider
Relations of Wintering Canvasbacks to Environmental Pollutants-chesapeake Bay, Maryland
Donald H. White, Rey C. Stendell, and Bernard M. Mulhern
Changes in Oldsquaw Carcass Weight
Steven R. Peterson and Robert S. Ellarson
Request for Assistance
Wilson Bulletin
Effects of Pine-oak Clearcutting on Winter and Breeding Birds in Southwestern Virginia
Richard N. Conner, Jerry W. Via, and Irvine D. Prather
Requests for Assistance
Wilson Bulletin
Request for Assistance
Wilson Bulletin
Ornithological News
Wilson Bulletin
Ornithological Literature
Wilson Bulletin
Suggestions to Authors
Wilson Bulletin
Covers
Back Matter (PDF)
Wilson Bulletin
Front Matter (PDF)
Wilson Bulletin
General Notes
Experimental Synchronization of Sparrow Reproduction
Ted R. Anderson
Sexual Differences in Feeding Territoriality of the Crowned Woodnymph, Thalurania Colombica
Robert I. Bertin and Peggy A. Wilzbach
Brown-headed Cowbird Parasitism on Eastern Bluebirds
Paul W. Woodward and Joan C. Woodward
Interspecific Use of Sandhill Crane Nests
Carroll D. Littlefield
The Red-whiskered Bulbul in Hawaii
Charles Van Riper III, Sandra G. Riper, and Andrew J. Berger
Removal of Fur from a Live Raccoon by Tufted Titmice
Barbara K. Eshbaugh and W. Hardy Eshbaugh
Pomarine Jaeger Preys on Adult Black-legged Kittiwake
George J. Divoky, Karen L. Oakley, and Harriet R. Huber
Black-billed Magpie Predation of a Killdeer Nest
John T. Mundahl
Opportunistic Feeding on Man-killed Prey by Ferruginous Hawks
Ronald K. Chesser
Misidentified Eskimo Curlews.
Robert W. Storer
The Role of Parent and Helper Red-cockaded Woodpeckers at the Nest
Michael R. Lennartz and Richard F. Harlow
Breeding Activities of Waved Woodpeckers in Surinam
Patricia O'Brien
Drowning of Grassland Birds in Stock Tanks
John D. Chilgren