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The Role of Behavior in the Temperature Regulation of the Masked Booby
George A. Bartholomew

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Spring, Summer, and Fall Foods of the Columbian Sharp-tailed Grouse in Eastern Washington
Robert E. Jones

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Annual Cycle of Reproduction and Molt in Gambel Quail of the Rio Grande Valley, Southern New Mexico
Ralph J. Raitt and Robert D. Ohmart

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Agonistic Behavior and Vocalizations of Orange-chinned Parakeets in Captivity
Dennis M. Power

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Energy Requirements for Egg-laying and Incubation in the Zebra Finch, Taeniopygia Castanotis
Alwan Jasim El-Wailly

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News and Notes
The Condor

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Index to Volume 68
The Condor

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Back Matter (PDF)
The Condor

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Front Matter (PDF)
The Condor

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Notes on the Distribution of Certain Icterids and Tanagers in California
Guy Mccaskie, Richard Stallcup, and Paul Debenedictis

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The Occurrence of Longspurs and Snow Buntings in California
Guy Mccaskie

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Notes on the Distribution of Conothraupis Speculigera (gould)
John P. O'Neill

Noteworthy Records of Shearwaters in the Gulf of California
Anthony G. Futcher and Leonard R. Brand

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First Report of the Starling Nesting in San Francisco, California
Kathryn Tenaza and Richard Tenaza

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Unusual Bird Records from Hooper Bay, Alaska
Heinrich K. Springer

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Gambel's White-crowned Sparrow Collected in Massachusetts
James Baird and Kathleen S. Anderson