Contents
Trophic Levels and Turnover Rates: the Avifauna of Santa Barbara Island, California
George L. Hunt Jr. and Molly W. Hunt
Turnover and Equilibria in Insular Avifaunas, with Special Reference to the California Channel Islands
James F. Lynch and Ned K. Johnson
Climatic Instability and the Ecological Saturation" of Bird Communities in North American Grasslands"
John A. Wiens
Vocalizations of the Mallard (anas Platyrhynchos)
Richard L. Abraham
The Natural History of Cassin's Auklet (ptychoramphus Aleuticus)
David A. Manuwal
The History of Farallon Island Marine Bird Populations, 1854-1972
David G. Ainley and T. James Lewis
News and Notes
The Condor
North American Nest Record Card Program
The Condor
The Bulletin Board
The Condor
Index to Volume 76
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Competition for the Nectar of Centropogon Valerii by the Hummingbird Colibri Thalassinus and the Flower-piercer Diglossa Plumbea, and Its Evolutionary Implications
Robert K. Colwell, Burr J. Betts, Pille Bunnell, F. Lynn Carpenter, and Peter Peinsinger
Relationship of Gonadal Recrudescence and Testicular Melanogenesis in California Quail
Robert G. Anthony and Irven O. Buss
Systematics of the White-throated Towhee (pipilo Albicollis)
Kenneth C. Parkes
Proportions of Wintering North American Birds in Disturbed and Undisturbed Dry Tropical Habitats
Elliot J. Tramer
Albinism in the Black Noddy (anous Tenuirostris)
Roger B. Clapp
Some Quantitative Aspects of Growth in Three Species of Buteos
Richard R. Olendorff
Dustbathing and Feather Lipid in Bobwhite (colinus Virginianus)
Bertin W. Anderson, Michael G. Reeder, and Richard L. Timken
Notes of the Feeding Behavior of the Common Merganser (mergus Merganser)
Bertin W. Anderson, Michael G. Berder, and Richard I. Tinken
Body Temperature of the Nesting Red-footed Booby (sula Sula)
R. J. Shallenberger, G. C. Whittow, and R. M. Smith
Nest-site Selection in Black-capped Chickadees
Susan M. Smith
Telemetry of Electrocardiograms Form Free-living Birds: a Method of Electrode Placement
Scott W. Sawby and James A. Gessaman
The Incubation Patches of Cassin's Auklet
David A. Manuwal