Contents
Vaux Swift in Louisiana
George H. Lowery Jr.
The Upland Plover at Faville Grove, Wisconsin
Irven O. Buss and Arthur S. Hawkins
Sexual Photoperiodicity in the Blue Jay (cyanocitta Cristata)
Thomas Hume Bissonnette
Observations on the Behavior of a Young Cowbird
Margaret Morse Nice
Ornithological Literature
Wilson Bulletin
Index to Volume 51, 1939
Wilson Bulletin
Covers
Back Matter (PDF)
Wilson Bulletin
Front Matter (PDF)
Wilson Bulletin
General Notes
Deformation in Nestling Cormorants
Richard Lee Weaver
American Egrets Breed in Wisconsin
Ira N. Gabrielson
The Food of Young Marsh Hawks
W. Henry Leigh
Remnant Numbers of Prairie Chicken in Southeastern Minnesota
Urban C. Nelson
Food of the Short-eared Owl during Migration through Pennsylvania
Pierce E. Randall
Unusual Behavior in the Chimney Swift
Harvey B. Lovell
Sex Ratio and Weights of Crows Wintering in Oklahoma
Ralph H. Imler and Frank B. Mcmurry