Contents
Characteristics and Reproductive Biology of Grosbeaks (pheucticus) in the Hybrid Zone in South Dakota
Bertin W. Anderson and Raymond J. Daugherty
The First Prebasic Molt of the Yellow-breasted Chat
Allan R. Phillips
Egg-neglect in the Wilson's Storm Petrel
Jaime E. Pefaur
Copulatory Behavior of Downy Woodpeckers
Lawrence Kilham
Play in Hairy, Downy, and Other Woodpeckers
Lawrence Kilham
Observations on the Horned Screamer
Frank B. Gill, F. J. Stokes, and C. C. Stokes
Observations at a Carolina Wren Nest from Which Brown-headed Cowbirds Fledged
Dorothy Hobson Luther
Notes on Birds of Costa Rica
Mercedes S. Foster and Ned K. Johnson
Plan to Attend the 1974 Annual Meeting
Wilson Bulletin
Ornithological News
Wilson Bulletin
The President's Page
Kenneth C. Parkes
Ornithological Literature
Wilson Bulletin
Covers
Back Matter (PDF)
Wilson Bulletin
Front Matter (PDF)
Wilson Bulletin
General Notes
First Record of Olivaceous Cormorants Nesting in New Mexico
Charles A. Hundertmark
Foot Injuries in Leach's Storm Petrels
William Threlfall
Snow Goose Soaring with White Pelicans
Patrick J. Caldwell and Bruce D. J. Batt
Aerial Feeding by Snowy and Great Egrets in Louisiana Waters
James A. Rodgers Jr.
California Condor Specimens in Collections
Sanford R. Wilbur
American Kestrel Preys on Least Weasel
G. Scott Mills
Feeding Activities of Ospreys in Minnesota
Thomas C. Dunstan
Clapper Rail in Tamaulipas, Mexico
Richard C. Banks
A Possible Assist to a Hatching Chick by an Adult Whimbrel
Mary M. Tremaine
Sunbathing in the Streamertail Hummingbird
Charles F. Leck
Aberrations in the Tongue Structure of Some Melanerpine Woodpeckers
Robert A. Wallace
A Communal Common Raven Roost in Virginia
Vincent J. Lucid and Richard N. Conner
Predation on a Shrew by an Eastern Bluebird
Benedict C. Pinkowski
Mountain Bluebirds Nesting in North Dakota
Henry Kermott, Robert Fields, and Alan Trout
Unusual Crepuscular Blackbird Movements
Allen R. Stickley Jr. and David E. Steffen
Common Grackles Preying on Fish
Tom Darden