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Nocturnal Observations of Elf Owls
Lewis W. Walker

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Variation in Western Sparrow Hawks
Richard M. Bond

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Contests of Double-crested Cormorants for Perching Sites
George A. Bartholomew

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Notes and News
The Condor

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Minutes of 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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Sex Rations in Wintering Gambel White-crowned Sparrows
John T. Emlen

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Starling in Northern Idaho
Andrew C. Olson

Starlings Nesting in Montana
Harlow B. Mills

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Notes on the Shore Birds of Washington
John W. Slipp

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Uncommon Birds at the Sun Gabriel River Bird Sanctuary
J. H. Comby

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Flight-feeding of the Ring-billed Gull
J. R. Alcorn

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The Bobolink in New Mexico
A. E. Borell

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Additions to the Avian Check-list of Lassen Volcanic National Park
Robert C. Stebbins

White-throated Swift Nesting in Active Quarry
C. Anderson

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Unusual Nesting Habits
Dale T. Wood

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Mallophagha on Young White Pelicans
Frank Richardson

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Dice's the Biotic Provisions of North America""
Frank A. Pitelka