Contents
Migration and Nesting of Nighthawks in Northern Idaho
Henry Judson Rust
Eye-color in the Green Jay
George Miksch Sutton
Notes and News
The Condor
Cooper Club Meetings
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
Black and Mottled Ducks in Colorado
Alfred M. Bailey
Duck Hawk Predation upon Ring-necked Pheasants
Gordon W. Gullion
An Unrecorded Specimen of Neochloe Brevipennis
Erwin Stresemann
The Black Vulture and the Caracara as Vegetarians
Fr. Haverschmidt
Zone-tailed Hawk Feeds on Rock Squirrel
Clarence Cottam
Notes on the Occurrence of Birds in Lower California
Karl W. Kenyon
Concentrated Nesting of Marsh Hawks
Edward M. Hall
The Black Phoebe in Western Oregon
Fred G. Dumas Jr., Philip C. Dumas, and Kenneth L. Gordon
Water-surface Feeding of Blackbirds
Frank Richardson
Another Outbreak of Fungus Disease in Gulls
Carlton M. Herman and Merton N. Rosen
The Vermilion Flycatcher in the Central Mohave Desert
Edmund C. Jaeger
Yellow-billed Magpies' Reaction to Poison
Ira L. Wiggins