Contents
The Annual Stimulus for Migration
Donald S. Farner
Altitudinal Variation in Bolivian Birds
Melvin A. Traylor
Observations of Some Birds of Guadalcanal and Tulagi
Walter R. Donaghho
Publications Reviewed
The Condor
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
California Condors Observed from Airplane
Lowell Sumner
New Breeding Records for Colorado
Ronald A. Ryder
Xantus Murrelet Captured in a Dip Net
Ira L. Wiggins
Slate-colored Junco in Reno, Nevada
Ned K. Johnson
Late Nesting Record for the Abert Towhee
Eugene E. Cardiff and Bruce E. Cardiff
A Sight Record of the Knot in Colorado
Milton B. Trautmann, Mary A. Trautmann, and H. G. Deignan
The Southern Limits of the Willet's Continental Breeding Range
George Miksch Sutton
The Brown Pelican as a Scavenger
J. W. Sefton Jr.
Records of the Knot in the San Josquin Valley, California
Fred G. Evenden Jr.
Virginia Warbler Parasitized by Cowbird
Frank C. Cross
A Vireo Specimen with Supernumerary Rectrices
Kenneth C. Parkes
Mallards Mobbing" Cooper Hawks"
Gordon W. Guilion
A New Clapper Rail from the Territory of Quintana Roo, Mexico
Raymond A. Paynter Jr.
A New North American Record for the Tufted Duck
Robert T. Orr
The Starling in Glenn County, California
Fred. L. Jones
An Albino Murre
John R. Arnold