Contents
The Mccown Longspurs of a Montana Prairie
A. Dawes Dubois
Migratory Behavior of Some Glaucous-winged Gulls in the Strait of Georgia, British Columbia
G. D. Sprot
Biotic Associations and Life-zones in Relation in the Pleistocene Birds of California
Alden H. Miller
Notes and News
J. Grinnell and Alden H. Miller
Minutes of Cooper Club Meetings
Frances Carter and Sidney B. Peyton
Index to Volume Xxxix
J. Grinnell
Covers
Front Matter (PDF)
The Condor
Back Matter (PDF)
The Condor
From Field and Study
Flights of Shearwaters along the California Coast
Henry E. Parmenter
Nesting of the Western Robin at Redlands, California
Harold M. Hill and David Billings
Notes on Birds from Graham County, Arizona
Gale Monson
The Sage Thrasher in Saskatchewan
Lawrence B. Potter
The Tibiotarsus of the Fossil Bird Bathornis Veredus
Alexander Wetmore
Two Sea-bird Records for Southern California
Karl W. Kenyon
A Herring Gull Record for Utah
William H. Marshall
The Cassin Kingbird in San Joaquin County, California
Alden H. Miller
The White-winged Junco in Arizona
Lyndon L. Hargrave, Allan R. Phillips, and Randolph Jenks
Three New Records from Bryce Canyon, Utah
C. C. Presnall