Contents
Irruptive Migration of Common Redpolls
Wesley M. Hochachka, Jeffrey V. Wells, Kenneth V. Rosenberg, Diane L. Tessaglia-Hymes, and Andre A. Dhondt
Migration Routes of Sooty Shearwaters in the Pacific Ocean
Larry B. Spear and David G. Ainley
Fluctuating Populations of House Wrens and Bewick's Wrens in Foothills of the Western Sierra Nevada of California
Jared Verner and Kathryn L. Purcell
Fitness Components Associated with Laying Date in the Cliff Swallow
Charles R. Brown and Mary Bomberger Brown
Foraging Ecology and Diet Selectivity of Tree Swallows Feeding Nestlings
John P. Mccarty and David W. Winkler
Do Black-throated Green Warblers Prefer Conifers? Meso-and Microhabitat Use in a Mixedwood Forest
Isabelle Robichaud and Marc-Andre Villard
Distribution, Abundance, and Habitat Characteristics of the Buff-breasted Flycatcher in Arizona
John A. Martin and Michael L. Morrison
A Predictive Model of Wetland Habitat Use on Guam by Endangered Mariana Common Moorhens
Michael W. Ritter and Julie A. Savidge
The Use of Mist-net Capture Rates to Monitor Annual Variation in Abundance: a Validation Study
Mariabeth Silkey, Nadav Nur, and Geoffrey R. Geupel
Tits, Warblers, and Finches: Foliage-gleaning Birds of Nearctic and Palearctic Boreal Forests
Russell Greenberg, Vladimir Pravosudov, John Sterling, Anna Kozlenko, and Vitally Kontorshchikov
Avian Communities of Mature Balsam Fir Forests in Newfoundland: Age-dependence and Implications for Timber Harvesting
Ian D. Thompson, Holly A. Hogan, and William A. Montevecchi
Nest Sites and Nesting Habitat of the Northern Spotted Owl in Northwestern California
William S. Lahaye and R. J. Gutierrez
Productivity and Survival of Great Horned Owls Exposed to Dieldrin
Rosemary A. Frank and Scott Lutz
Copulatory Behavior of Semi-colonial Montagu's Harriers
Beatriz E. Arroyo
Photoperiodic Responsiveness of Equatorial and Temperate-zone Stonechats
Eberhard Gwinner and Alexander Scheuerlein
Wing and Primary Growth of the Wandering Albatross
S. D. Berrow, N. Huin, R. Humpidge, A. W. Murray, and P. A. Prince
Factors Affecting Survival of Northern Pintail Ducklings in Alberta
Karla L. Guyn and Robert G. Clark
Spatial Extent of Human-intrusion Effects on Subalpine Bird Distributions
Kevin Gutzwiller and Stanley H. Anderson
Book Reviews
The Condor
Briefly Noted
Kimberly G. Smith
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Behavioral Correlates of Heart Rates of Free-living Greater White-fronted Geese
Craig R. Ely, David H. Ward, and Karen S. Bollinger
Vocalizations of the Kittlitz's Murrelet
Thomas I. Pelt and John F. Piatt
Evidence of Male-bias in Capture Samples of Marbled Murrelets from Genetic Studies in British Columbia
Brett A. Vanderkist, Xiao-Hua Xue, Richard Griffiths, Kathy Martin, Wendy Beauchamp, and Tony D. Williams
Facilitation of Sap-feeding Birds by the White-fronted Woodpecker in the Monte Desert, Argentina
Pedro G. Blendinger
Effects of Winter Weather on Horizontal and Vertical Use of Isolated Forest Fragments by Bark-foraging Birds
Andres S. Dolby and Thomas C. Grubb Jr.
Incubation Behavior of Spectacled Eiders on the Yukon-kuskokwim Delta, Alaska
Paul L. Flint and Barry Grand
Incubation Behavior of Northern Shovelers in the Subarctic: a Contrast to the Prairies
Margaret C. Maccluskie and James S. Sedinger
Circadian Metabolic Responses to Food Deprivation in the Black-shouldered Kite
Andrew E. Mckechnie and Barry G. Lovegrove
Molecular Systematics of the Rhinocryptid Genus Pteroptochos
R. Terry Chesser
Phylogenetic Patterns in Montane Troglodytes Wrens
Nathan H. Rice, A. Townsend Peterson, and Griselda Escalona-Segura