Contents
Robert Ridgway
Harry Harris
Notes on the Systematics of West American Birds I
Joseph Grinnell
Editorial Notes and News
J. Grinnell
Minutes of Cooper Club Meetings
Hilda W. Grinnell and Harold Michener
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
Can Hawks Prevent Mouse Plagues? a Reply
John G. Tyler
Fly-catching Habits of the Western Tanager
Jack C. Bloeker
Winter Roosts of Western Robins
Ernest D. Clabaugh
September Nesting of the Band-tailed Pigeon
J. Grinnell
Nesting Time of Band-tailed Pigeons in Yosemite Valley
Charles W. Michael
Assistant Parentage among Birds
Stanley G. Jewett
Food of Young Horned Owls Includes Adult Marsh Hawk
Leon L. Gardner
Whistling of the Wilson Snipe
John S. Main
The Little Green Heron in Oregon
Stanley G. Jewett
An Abode of Otus Flammeolus
H. H. Kimball