Contents
A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (anatidae: Anas)
Storrs L. Olson and Pierre Jouventin
Spring Migration of Western Sandpipers along the Pacific Coast of North America: a Telemetry Study
George C. Iverson, Sarah E. Warnock, Robert W. Butler, Mary Anne Bishop, and Nils Warnock
Wetland Selection by American Green-winged Teal Breeding in British Columbia
Gil A. Paquette and C. Davison Ankney
Technique-dependent Biases in Determination of Diet Composition: an Example with Ring-billed Gulls
Kevin M. Brown and Peter J. Ewins
Seasonal Decline in Clutch Size of Te Barnacle Goose in Svalbard
Laila Dalhaug, Ingunn M. Tombre, and Kjell Einar Erikstad
Survival of Northern Pintail Ducklings on the Yukon-kuskokwim Delta, Alaska
James B. Grand and Paul L. Flint
Nesting Success of Northern Pintails on the Coastal Yukon-kuskokwim Delta, Alaska
Paul L. Flint and J. Barry Grand
Age-specific Survival and Philopatry in Three Species of European Ducks: a Long-term Study
Peter Blums, Aivars Mednis, Ilmars Bauga, James D. Nichols, and James E. Hines
Nesting Habits of the Loggerhead Shrike in Sagebrush
Christopher P. Woods and Tom J. Cade
Nest Density and Success of Columbids in Puerto Rico
Frank F. Rivera-Milan
The Effect of Thermal Microclimate on Foraging Site Selection by Wintering Mountain Chickadees
Douglas G. Wachob
Forest Structural Characteristics of Accipiter Nesting Habitat: is There an Allometric Relationship?
Melissa S. Siders and Patricia L. Kennedy
The Importance of Productivity to the Dynamics of a Swainson's Thrush Population
Matthew D. Johnson and Geoggrey R. Geupel
Old Nest Material in Nestboxes of Tree Swallows: Effects on Reproductive Success
Wallace B. Rendell and Nicolaas A. Verbeek
The Boreal Owl at the Southern Terminus of the Rocky Mountains: Undocumented Longtime Resident or Recent Arrival?
Dale W. Stahlecker and Russell B. Duncan
Information for Contributors
The Condor
Cover
Front Matter (PDF)
The Condor
Commentary
Historical Perspectives on Orientation: an Addendum
Stephen T. Emlen
Short Communications
Variation in Egg Size of the Northern Pintail
Paul L. Flint and J. Bakery Grand
Lifetime Nesting Area Fidelity in Male Cooper's Hawks in Wisconsin
Robert N. Rosenfield and John Bielefeldt
Communities of Cloacal Bacteria in Tree Swallow Families
Michael P. Lombardo, Patrick A. Thorpe, R. Cichewicz, M. Henshaw, C. Millard, C. Steen, and T. K. Zeller