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Sexual Dimorphism and Differential Niche Utilization in Birds
Robert K. Selander

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Abundance and Activity of Starlings in Winter in Northern Utah
Edgar P. Bailey

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Notes on the Status of Some Birds in South-central Alaska
James E. Hemming

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Alpine Birds of the Beartooth Mountains
Donald L. Pattie and Nicolaas A. M. Verbeek

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North American Migrants in the Sierra De Tuxtla of Southern Veracruz, Mexico
Robert F. Andrle

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Recent Data on Status of Some Interior Alaska Birds
Brina Kessel and Heinrich K. Springer

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Breeding of the Starling in Central Arizona
Willis C. Royall Jr.

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News and Notes
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 Bill-brace Feeding Behavior of the Galapagos Finch Geospiza Conirostris
Paul A. Debenedictis

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Falco Rufigularis -- the Correct Name of the Bat Falcon
Eugene Eisenmann

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Absence of Brood Patch in Cassin Auklets
Robert B. Payne

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First Specimen of the Summer Tanager in Utah
David A. Easterla

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Occurrence of the Lesser Frigate-bird and Pale-footed Shearwater in Korea
Chester M. Fennell

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Flammulated Owl Records Following May Storms in Zion Canyon, Utah
Roland H. Wauer

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Another California Specimen of Pluvialis Dominica Fulva
George E. Chaniot Jr.

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Another Distributional Records from New Mexico
David M. Niles

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A New Subspecies of the Virginia Rail from Mexico
Robert W. Dickerman