Contents
Variations in the Number of Primaries
Erwin Stresemann
Further Observations on the Breeding Behavior of a Blue Grouse Population in Montana
John L. Blackford
Breathing of Birds in Flight
Jack R. Tomlinson
A Spectrographic Analysis of the Vocal Repertoire of the African Village Weaverbird
Nicholas E. Collias
Notes and News
The Condor
Index to Volume 65
Jane R. Durham
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
From Field and Study
Why is the Galapagos Lava Gull the Color of Lava?
Jack P. Hailman
Occurrence of the Startling in Baja California, Mexico
Ernest P. Edwards and Eugene S. Morton
The Trumpeter Swan in San Joaquin County, California
Eugene S. Morton and James L. Tate
Common Crow Nesting in Utah
Gerald L. Richards and Clayton M. White
Notes on Three Species of Waterfowl in Uruguay
Rodolfo Escalante
A Record of the Indigo Bunting in Northwestern California
Sanford R. Wilbur
Orchard Oriole in Monterey County, California
Elgin B. Hurlbert
Solitary Vireo of the Race Plumbeus in California
Eugene A. Cardiff