Contents
Summer Movements of Black Swifts in Relation to Weather Conditions
Miklos D. Udvardy
Variation in Breeding Season and Clutch Size in Song Sparrows of the Pacific Coast
Richard F. Johnson
Comparative Notes on Fuertes and Orchard Orioles
Richard R. Graber and Jean W. Graber
The Birds of Guadalupe Island in 1953
Thomas R. Howell and Tom J. Cade
Nesting of the Greenland Wheatear on Baffin Island
George M. Sutton and David F. Parmelee
Cooper Society Meetings
The Condor
Publication Reviewed
The Condor
Notes and News
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
Ross Goose in the Eastern Arctic
Graham Cooch
Multiple Use of Cliff Swallow's Nests by Bird Species
Clarence A. Sooter, E. E. Bennington, and Leslie B. Daniels
Status of the Wood Ibis in San Diego County, California
Andreas B. Rechnitzer
A Further Record of the Slaty Finch in Mexico
Alden H. Miller and Robert T. Moore
Ross Goose Observations
Edward J. O'Neill
A Third Record of the Black-throated Blue Warbler in California
Eric Campbell Kinsey
Ross Goose in Texas
F. W. Miller
Molothrus Ater Ater in Arizona
Robert W. Dickerman and Allan R. Phillips
Second Records of the Swamp and Brown Thrasher in Utah
William H. Behle
Franklin Gulls Riding Whirlwind and Feeding
Clarence A. Sooter
Record Families of Swainson Thrush
John L. Blackford
Unusual Barn Owl Nest Location
Ray Quigley Jr.