Contents
Drinking Mechanisms in the Zebra Finch and the Bengalese Finch
J. Heidweiller and G. A. Zweers
Water Economy of Nestling Swainson's Hawks
John S. Kirkley and James A. Gessasman
Regional Correspondence among Shrubsteppe Bird Habitats
Fritz L. Knopf, James A. Sedgwick, and Douglas B. Inkley
Wing-shape Variation and Differential Timing of Migration in Dark-eyed Juncos
C. Ray Chandler and Robert S. Mulvihill
Incidence and Determinants of Double Brooding in Wrentits
Geoffrey R. Geupel and David F. Desante
Genetic and Morphometric Differentiation in Introduced Populations of Common Chaffinches (fringilla Coelebs) in New Zealand
Allan J. Baker, Mark K. Peck, and Margaret A. Goldsmith
Mass Variation in Breeding Wood Thrushes
R. Kent Johnson, Roland R. Roth, and John T. Paul Jr.
Colony Attendance and Population Monitoring of Least and Crested Auklets on St. Lawrence Island, Alaska
John F. Piatt, Bay D. Roberts, and Scott A. Hatch
Old Nests as Cues for Nest-site Selection: an Experimental Test with Red-winged Blackbirds
W. James Erckmann, Less D. Beletsky, Gordon H. Orians, Torgeir Johnson, Susan Sharbaugh, and Carla D'Antonio
Absolute and Relative Pitch Production in the Song of the Black-capped Chickadee
Ron Weisman, Laurene Patcliffe, Ingrid Johnsrude, and T. Andrew Hurly
Differences in Timing and Number of Molts for Baltimore and Bullock's Orioles: Implications to Hybrid Fitness and Theories of Delayed Plumage Maturation
Sievert Rohwer and Jo Manning
Availability and Use of Arthropod Food Resources by Wilson's Warblers and Lincoln's Sparrows in Southeastern Wyoming
Catherine M. Raley and Stanley H. Anderson
Flock Size and Position Effects on Vigilance, Aggression, and Prey Capture in the European Starling
Gregory C. Keys and Lee A. Dugatkin
Effect of El Nino-southern Oscillation Conditions on Nestling Growth Rate in the Dark-rumped Petrel
Justine B. Cruz and Felipe Cruz
Seasonal and Age-related Changes in Plasma Testosterone Level in Mountain White-crowned Sparrows
Martin L. Morton, Linda E. Peterson, Douglas M. Burns, and Noella Allan
Parental Behavior of Cackling Canada Geese during Brood Rearing: Division of Labor Within Pairs
James S. Sedinger and Dennis G. Raveling
Population Genetics and Gene Flow of the Common Tern
Sherman L. Burson III
Nest-site Selection and Nest-cavity Characteristics of Gila Woodpeckers and Northern Flickers
Theodore A. Kerpez and Norman S. Smith
Intraspecific Variation in the Hindlimb Musculature of the House Sparrow
Susan Berman, Maurizio Cibischino, Paul Dellaripa, and Linda Montren
Validity of Predictive Equations for Total Body Fat in Sanderlings from Different Nonbreeding Areas
Gonzalo Castro and J. P. Myers
Hematology and Blood Chemistry of Wintering Common Cranes
M. L. Puerta, J. C. Alonso, V. Huecas, J. A. Alonso, M. Abelenda, and R. Munoz-Pulido
Effects of Time of Day and Season on Winter Bird Counts
Brian F. Rollfinke and Richard H. Yahner
The Variety and Nutritional Value of Foods Consumed by Hawaiian Crow Nestlings, an Endangered Species
Howard F. Sakai and James R. Carpenter
Habitat, Movements and Roost Characteristics of Montezuma Quail in Southeastern Arizona
Mark R. Stromberg
Harry R. Painton Award
The Condor
Book Reviews
March F. Lawton
News and Notes
The Condor
Information for Contributors
The Condor
Cover
Front Matter (PDF)
The Condor
Short Communications
Descriptions of Nests, Eggs and Young of the Barred Forest-falcon (micrastur Ruficollis) and of the Collared Forest-falcon (m. Semitorquatus)
Russell K. Thorstrom, Charles W. Turley, Feliciano Gutierrez Ramirez, and Beth Ann Gilroy
Habitat Use and Relative Abundance of Migrant Shorebirds in a Western Amazonian Site
David C. Bolster and Scott K. Robinson
Extra-pair Copulations in Black Brant
Daniel Welsh and James S. Sedinger
Sandpiper-like Feeding in Black-bellied Plovers
Dennis R. Paulson
Alloparenting at an Eastern Screech-owl Nest
Dwight G. Smith and Ed Hiestand
Male Philopatry in Mallards
James O. Evrard
Statistical Analysis of a Problem Data Set: Correlated Observations
Kathleen G. Beal and Harry J. Khamis
Simultaneous Use of Nest Trees by Breeding Red-headed and Red-bellied Woodpeckers and European Starlings
Danny J. Inoold
On Communal Roosting and Associated Winter Social Behavior of Gray-breasted Woodpeckers
Paul Hendricks, Joseph R. Kmcauliffe, and Alfanso Valiente-Banuet
Florida Scrub Jay Kills a Mockingbird
Robert L. Curry
Cuckoldry in an American Kestrel Triad
Steven R. Towers
Female Song in the Yellow Warbler
Keith A. Hobson and Spencer G. Sealy
Same-nest Polygyny in the Barn Owl
Carl D. Marti
Comparisons of the Behavior of Sage and Brewer's Sparrows in Shrubsteppe Habitats
John A. Wiens, Beatrice Van Horne, and John T. Rotenberry