Contents
The Vocal Behavior of Cardinals and Pyrrhuloxias in Texas
Robert E. Herzog
Temperature Regulation in Nestling Cactus Wrens: the Nest Environment
Robert E. Ricklefs and F. Reed Hainsworth
Breeding Birds of Two Florida Woodlands: Comparisons with Areas North of Florida
Sievert A. Rohwer and Glen E. Woolfenden
Responses to Temperature by the Spotted Nightjar (eurostopodus Guttatus)
William R. Dawson and Charles D. Fisher
Cecal Fermentation in the Willow Ptarmigan
Richard H. Mcbee and George C. West
Incubation Temperatures and Thermoregulation in the Mccormick Skua
Ianf. Spellerberg
News and Notes
The Condor
The Bulletin Board
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Communications
A New Avian Fossil from Kern County, California
Hildegarde Howard
Rediscovery of the Nesting Grounds of Newell's Manx Shearwater (puffinus Puffinus Newelli), with Initial Observations
John L. Sincock and Gerald E. Swedberg
Fowl Pox in Cassin's Sparrow, Aimophila Cassinii
Howard Savage and James A. Dick
Additional Notes on the White Pelican Colony at Stum Lake, British Columbia
R. Wayne Campbell and D. Lorne Frost
A Case of Great Horned Owl Predation on a Porcupine
James W. Wiley
Breeding Behavior of the Andean Condor (vultur Gryphus)
Martha A. Whitson and Paul D. Whitson
An Albinistic Adelie Penguin
Ian Stirling
A Canada Goose from the Middle Pleistocene of Nebraska
James Tate Jr. and Larry D. Martin
Incubation and Nestling Periods of the Horned Puffin
Spencer G. Sealy