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Predation by Owls in the Sierran Foothills of California
Henry S. Fitch

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Breeding Populations of the Osprey in Lower California
Karl W. Kenyon

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An Estimated Weight of the Largest Known Bird
Dean Amadon

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A Report on the Birds of San Nicolas Island
Egmont Z. Rett

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Notes and News
The Condor

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Publication Reviewed
The Condor

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Cooper Club Meetings
The Condor

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Back Matter (PDF)
The Condor

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Front Matter (PDF)
The Condor

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The Bufflehead Nesting in Oregon
Fred G. Evenden

Starling in Southern California
Kenneth E. Stager

Adaptability of Bewick Wrens to Nest Molestation
Eleanor Gayer Beemer

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Establishment of Artificially Propagated Quail
Ian I. Mcmillan

Arizona Race of Acorn Woodpecker Vagrant in California
Alden H. Miller

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Stone-turning Habits of Some Desert Birds
Edmund C. Jaeger

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Does the Black Petrel Winter Off the California Coast?
A. J. Rossem

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Emperor Geese Again on Humboldt Bay, California
Robert R. Talmadge

The Type of Passerculus Guttatus: a Correction
A. J. Rossem

Anna Hummingbird with Three Eggs
Edward M. Hall

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Winter Record of Western Tanager at San Diego, California
James E. Crouch

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Notes on the Birds of the Upper Salinas Valley, California
M. Vincent Mowbray