Contents
Thermoregulation in the Red-breasted Nuthatch (sitta Canadensis)
John N. Mugaas and James R. Templeton
Breeding Biology of Western Gulls (lartus Occidentalis) on San Nicolas Island, California, 1968
Ralph W. Schreiber
Temperature Regulation in the Speckled Mousebird, Colius Striatus
George A. Bartholomew and Charles H. Trost
Mid-pleistocene Birds from Western Nebraska, Including a New Species of Sheldgoose
Lester L. Short Jr.
The Bioenergetics of Captive Blue-winged Teal under Controlled and Outdoor Conditions
Ray B. Owen Jr.
Relative Kidney Size in Nonpasserine Birds with Functional Salt Glands
Maryanne Robinson Hughes
Foraging Behavior of Some Winter Birds of Deciduous Woods
Mary F. Willson
Weights, Body Composition, and Caloric Value of Postjuvenal Molting European Tree Sparrows (passer Montanus)
Andrzej Myrcha and Jan Pinowski
Breeding Bird Populations of Burned and Unburned Conifer Forest in the Sierra Nevada
Carl E. Bock and James F. Lynch
Light Resources of Thyroidectomized Common Weaver Birds, Ploceus Philippinus
J. P. Thapliyal and K. Bageshwar
Notes on the Food Habits and Food Defense of the Acorn Woodpecker
Michael H. Macroberts
Seasonal Changes in Thymus Weights in Ring-necked Pheasants
William L. Anderson
A New Hybrid Hummingbird, Archilochus Alexandri X Selasphorus Sasin
James F. Lynch and Peter L. Ames
Vocalizations of the Long-billed Curlew
Dennis M. Forsythe
Temperature Changes in Chimney Swifts (chaetura Pelagica) at Lowered Environmental Temperatures
Jed J. Ramsey
Publications Received
The Condor
News and Notes
The Condor
The Bulletin Board
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Status of the Summer Tanager on the Pacific Slope
Amadeo M. Rea
Interspecific Territoriality of Migrant Callope and Resident Broad-tailed Hummingbirds
George T. Austin
Feeding Habits of the Dipper in Southwestern Washington
Rudolph N. Thut
Ingestion of Stones by Goatsuckers (caprimulgidae)
Marion Anne Jenkinson and Robert M. Mengel
Parental Feeding in a Male Great-tailed Crackle
Robert K. Selander
The Eggs and Young of the Palila, and Endangered Species
Andrew J. Berger
The White-eye as an Interspecific Feeding Helper
C. Robert Eddinger
Recent Observations at the Base of the Alaska Peninsula
Daniel D. Gibson
Specimen Records for South Dakota Birds
Bruce K. Harris
An Instance of a Captive Turkey Vulture Killing Prey
Ben Clading and Charlotte H. Clading
Foot-trembling" Feeding Behavior by a Killdeer"
Susan M. Smith
A Marsh Hawk Roost in Texas
Carroll D. Littlefield
Notes on the Royal Tern in Surinam
F. Haverschmidt
A Note on the Stomach Contents of Two Whooping Cranes
Francis M. Uhler and Louis N. Lockie
Chestnut-sided Warbler in Washington
David B. Marshall