Contents
Congeneric Species of Birds Nesting Together in Central America
Alexander F. Skutch
Birds and an Ant Army in Southern Tamaulipas
George Miksch Sutton
A Cooling Mechanism of the Texas Nighthawk
Raymond B. Cowles and William R. Dawson
Osteology of Colinus Hibbardi, a Plocene Quail
Harrison B. Tordoff
The Avifauna of Niihau Island, Hawaiian Archipelago
Harvey I. Fisher
Stomach Analysis of a Group of Shorebirds
William G. Reeder
Notes and News
The Condor
Cooper Club Meetings
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
Biographical Note on Scopoli
Charles H. Blake
Breeding Status of the Ring-necked Duck in Washington
Charles F. Yocom
Pioneer Starling Nesting in Eastern Oregon
Charles W. Quaintance
A Caracara in Colorado
Clyde P. Matteson
Some Observations of Birds in Southern Colorado
Allan R. Phillips
Black-and-white Warbler in Santa Clara County, California
Charles G. Sibley
Notes on the Birds of Mount Locke, Texas
Daniel M. Popper
Duck Hawks Nesting in Colorado
Norman R. French
Corrections Concerning Data on Alaskan Birds
J. Dan Webster