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The Condor, Volume 77, Number 2 (1975)

2 (April)


Reproductive Biology of the White-Crowned Sparrow, Ii. Environmental Control of Reproductive and Associated Cycles. 111- 124.
Robert A. Lewis.
Experimental Modification of Reproductive Performance By Density in Captive Starlings. 125-132.
Arthur C. Risser, Jr..
The Nesting and Reproductive Success of Red-Tailed Hawks and Red-Shouldered Hawks in Orange County, California, 1973. 133- 139.
James W. Wiley.
Prostitution" Behavior in a Tropical Hummingbird". 140-144.
Larry L. Wolf.
Song Dialects in Several Populations of Mountain White-Crowned Sparrows (Zonotrichia Leucophrys Oriantha) in the Sierra Nevada. 145-153.
Jorge E. Orejuela, Martin L. Morton.
An Inconsistency Between Protein Resemblance and Taxonomic Resemblance: Immunological Comparison of Diverse Proteins From Gallinaceous Birds. 154-159.
Richard A. Nolan, Alan H. Brush, Norman Arnheim, Allan C. Wilson.
Thermal Exchange Between Sharp-Tailed Grouse (Pedioecetes Phasianellus) and Their Winter Environment. 160-168.
Keith E. Evans, Aaron N. Moen.
Digestive Adaptations of Phainopepla Nitens Associated with the Eating of Mistletoe Berries. 169-174.
Glenn E. Walsberg.
Weather-Dependent Foraging Behavior of Some Birds Wintering in a Deciduous Woodland. 175-182.
Thomas C. Grubb, Jr..
Songs of the Rufous-Sided Towhee. 183-195.
Donald J. Borror.
The Migrations of Allen's and Other Hummingbirds. 196-205.
Allan R. Phillips.
News and Notes. 231.
Selected Recent Publications. 231-232.
The Bulletin Board. 232.

Short Communications

Recent Observations in the Wrangell Mountains, Alaska. 206-207.
Bryan L. Sage.
Symbiotic Relationships Within a Mixed Waterfowl Assembly. 207-208.
Donald W. Lamm.
First Recorded Breeding of the Great-Tailed Grackle in Colorado. 208-210.
P. H. R. Stepney.
Correction Factors for Digestion Rates for Prey Taken By Snow Buntings (Plectrophenax Nivalis). 210-212.
Thomas W. Custer, Frank A. Pitelka.
Use of Tundra Habitats By Prairie Falcons in Colorado. 213-214.
Carl D. Marti, Clait E. Braun.
The Occurrence of Twin Waterfowl Embryos. 214.
Bruce D. J. Batt, James A. Cooper, George W. Cornwell.
The Fox Sparrow in Southwestern Yukon and Adjacent Areas. 215-216.
J. Dan Webster.
Time Budget and Foraging Site Preference of the Cinnamon Hummingbird in Costa Rica. 216-217.
Douglas W. Schemske.
Recent Observations on the Birds of Isla Contramaestre and Isla Magdalena, Straits of Magellan. 218-220.
David F. Parmelee, S. D. Macdonald.
First Nest Record of the White-Winged Crossbill in Hispaniola. 220-221.
Angela K. Kepler, Cameron B. Kepler, Annabelle Dod.
Rose-Throated Becard in Jeff Davis County, Texas. 221.
Steve R. Runnels.
Selective Effects of Predation in a Tern Colony. 221-226.
I. C. T. Nisbet.
Hunting By the White-Tailed Kite (Elanus Leucurus). 226-230.
J. Sauve Warner, Robert L. Rudd.
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Front Matter (PDF) (281.14 KB) 281.14 KB

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