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The Condor, Volume 96, Number 4 (1994)

Publication Information


Thick-Billed Parrot Releases in Arizona. 845-862.
Noel F. R. Snyder, Susan E. Koenig, James Koschmann, Helen A. Snyder, Terry B. Johnson.
Foraging Ecology of Epiphyte-Searching Insectivorous Birds in Costa Rica. 863-877.
T. Scott Sillett.
Nutrition of Breeding Female Ruddy Ducks: the Role of Nutrient Reserves. 878-897.
Ray T. Alisauskas, C. Davison Ankney.
Effects of Hatch Date and Food Supply on Gosling Growth in Arctic-Nesting Greater Snow Geese. 898-908.
Anna Lindholm, Gilles Gauthier, Andre Desrochers.
Variation in Body Mass of Wild Canvasback and Redhead Ducklings. 909-915.
Jane E. Austin, Jerome R. Serie.
Brown-Headed Cowbirds and an Island Population of Song Sparrows: A 16-Year Study. 916-934.
James N. M. Smith, Peter Arcese.
Population Parameters of Thick-Billed Murres at Coats Island, Northwest Territories, Canada. 935-948.
Anthony J. Gaston, Leah N. De Forest, Garry Donaldson, David G. Noble.
Residency Patterns of Migrating Sandpipers at a Midcontinental Stopover. 949-958.
Susan K. Skagen, Fritz L. Knopf.
Age Determination of Breeding Shorebirds: Quantification of Feather Wear in the Lekking Great Snipe. 959-972.
Stein Are Saether, John Atle Kalas, Peder Fiske.
Behavioral Patterns and Nearest Neighbor Distances Among Nonbreeding American Avocets. 973-986.
Ruth Boettcher, Susan M. Haig, William C. Bridges, Jr.
Great Frigatebird Kleptoparasitism: Sex-Specific Host Choice and Age-Related Proficiency. 987-993.
James D. Gilardi.
Breeding Performance in Relation to Nest-Site Substratum in a Buff-Necked Ibis (Theristicus Caudatus) Population in Patagonia. 994-1002.
Jose A. Donazar, Olga Ceballos, Alejandro Travaini, Alejandro Rodriguez, Martin Funes, Fernando Hiraldo.
Characteristics of White-Tailed Sea Eagle Nest Sites in Hokkaido, Japan. 1003-1008.
Saiko Shiraki.
The Hazards of Nesting Near Shrubs for a Grassland Bird, the Mccown's Longspur. 1009-1019.
Kimberly A. With.
Autumnal Migration Departure Schedules in Mountain White-Crowned Sparrows. 1020-1029.
Martin L. Morton, Maria E. Pereyra.
Geographic Variation in Yellow-Headed Blackbirds From the Northern Great Plains. 1030-1036.
Daniel J. Twedt, William J. Bleier, George M. Linz.
The Use of Cytochrome B Sequence Variation in Estimation of Phylogeny in the Vireonidae. 1037-1054.
Brent W. Murray, W. Bruce Mcgillivray, Jon C. Barlow, Robin N. Beech, Curtis Strobeck.
Mate Guarding and Extra-Pair Paternity in Northern Cardinals. 1055-1063.
Gary Ritchison, Paul H. Klatt, David F. Westneat.
The Effect of Food Availability on Time and Energy Expenditures of Territorial and Non-Territorial Hummingbirds. 1064- 1075.
Donald R. Powers, Todd Mckee.
Causes of Nest Desertion During Incubation in the Magellanic Penguin (Spheniscus Magellanicus). 1076-1083.
Pablo Yorio, P. Dee Boersma.
Book Reviews. 1121-1122.
New Books in Ornithology. 1123.
Christopher W. Thompson.
News and Notes. 1124-1125.
Reviewers for Volume 96. 1126-1127.
Index to Volume 96. 1128-1137.


On Testing the Hamilton-Orians Hypothesis for the Origin of Brood Parasitism. 1115-1116.
Stephen M. Yezerinac, Kevin W. Dufour.
Brood Parasitism and the Hamilton-Orians Hypothesis Revisited. 1117-1118.
Stephen I. Rothstein.


The Use of Wild Birds in Research. 1119-1120.
Glenn E. Walsberg.

Short Communications

Dialect Differences in the Song of Zonotrichia Capensis in the Southern Pampas: A Test of the Acoustic Adaptation Hypothesis. 1084-1088.
Pablo L. Tubaro, Enrique T. Segura.
Aerial Display Sounds of the Black-Chinned Hummingbird. 1088-1091.
Carolyn Pytte, Millicent Sigler Ficken.
The Nonbreeding Distribution of the Black Swift: A Clue From Colombia and Unsolved Problems. 1091-1094.
F. Gary Stiles, Alvaro J. Negret.
Nesting Ecology and Helping Behavior in the Azure-Rumped Tanager in Mexico. 1095-1099.
Adrian J. Long, Melanie F. Heath.
Reproductive Anatomy of the Chaffinch in Relation to Sperm Competition. 1099-1103.
B. C. Sheldon, T. R. Birkhead.
Climbing Adaptations in the Hindlimb Musculature of the Woodcreepers (Dendrocolaptinae). 1103-1106.
Robert J. Raikow.
Survival Estimates for Snowy Plovers Breeding at Great Salt Lake, Utah. 1106-1109.
Peter W. C. Paton.
The Spur-Winged Plover (Vanellus Spinosus) Is a Determinate Egg Layer. 1109-1110.
Akiva Yogev, Yoram Yom-Tov.
Diving Depths of White-Chinned Petrels. 1111-1113.
N. Huin.
Multiple Cases of Polygyny in the Black-Capped Chickadee: A Possible Advantage to the Primary Female. 1113-1114.
Janine R. Clemmons.
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