Contents
Dynamics of Incubation in Mountain White-crowned Sparrows
Eileen Zerba and Martin L. Morton
Breeding Biology of the Xantus' Murrelet
Kelvin G. Murray, Kathy Winnett-Murray, Zoe A. Eppley, George L. Hunt, and Douglas B. Schwartz
Relationships Between Tidal Oscillations and Ruddy Turnstone Flocking, Foraging, and Vigilance Behavior
Robert C. Fleischer
Recent Publications
The Condor
Quantitative Analysis of Prairie Grouse Vocalizations
Donald W. Sparling
Hatching of Forster's Terns
Martin K. McNicholl
Effects of Dietary Protein Levels on Body Weight, Food Consumption, and Nitrogen Balance in Ruffed Grouse
Patrick R. Beckerton and Alex L. Middleton
The Metabolic Rate of Tropical Birds
C. J. Hails
Nesting Biology of Thick-billed Parrots
Dirk V. Lanning and James T. Shiflett
Survival of Mallard Broods in South-central North Dakota
Larry G. Talent, Robert L. Jarvis, and Gary L. Krapu
Status of a Northern Population of California Brown Pelicans
Daniel W. Anderson and Franklin Gress
Information for Contributors
The Condor
News and Notes
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Melampitta Gigantea: Possible Relation Between Feather Structure and Underground Roosting Habits
Jared M. Diamond
Spontaneous Blink Rates of Birds
Suzanne J. Kirsten and Edward B. Kirsten
Nest Predation in Insular and Mainland Lowland Rainforest in Panama
Bette A. Loiselle and William G. Hoppes
Additions to the Avifauna of Bolivia, Part 2
J. V. Remsen Jr. and Melvin A. Traylor Jr.
Plumage Characteristics of Juvenile Black-chinned Hummingbirds
Frank A. Baldridge
A New Age- and Sex-specific Molt Scheme for the Red-winged Blackbird
Hamilton Greenwood, Patrick I. Weatherhead, and Rodger D. Titman
Mate Replacement in Purple Martins: Little Evidence for Altruism
Charles R. Brown
Water Loss from Pipped Wedge-tailed Shearwater Eggs
T. N. Petit and G. C. Whittow
Variations in the Egg Markings of the Brown-headed Cowbird
Alfred M. Dufty Jr.
Seasonal Variation in Nest Placement of Abert's Towhees
Deborah M. Finch
Flight Song and Song Flight in the Orange-crowned Warbler
William M. Gilbert