Contents
Use of Quaking Aspen Flower Buds by Ruffed Grouse: Its Relationship to Grouse Densities and Bud Chemical Composition
Walter J. Jakubas and Gordon W. Gullion
Embryo Metabolism and Egg Neglect in Cassin's Auklets
Lee B. Astheimer
Adaptive Loss of Mass in Thick-billed Murres
Donald A. Croll, Anthony J. Gaston, and David G. Noble
Persistent Summer Mortalities of Common Murres along the Oregon Central Coast
Range D. Bayer, Roy W. Lowe, and Robert E. Loeffel
Seasonal Differences in the Response of Rufous Hummingbirds to Food Restriction: Body Mass and the Use of Torpor
Sara M. Hiebert
Flight Performance, Energetics and Water Turnover of Tippler Pigeons with a Harness and Dorsal Load
James A. Gessaman, Gar W. Workman, and Mark R. Fuller
Nest-site Characteristics of Hammonds and Pacific-slope Flycatchers in Northwestern California
Howard F. Sakai and Barry R. Noon
Nest-site Selection and the Importance of Nest Concealment in the Black-throated Blue Warbler
David A. Holway
Feeding Ecology of Waterfowl Wintering on Evaporation Ponds in California
Ned H. Euliss Jr., Robert L. Jarvis, and David S. Gilmer
Flexible Growth Rates in Nestling White-fronted Bee-eaters: a Possible Adaptation to Short-term Food Shortage
Stephen T. Emlen, Peter H. Wrege, Natalie J. Demong, and Robert E. Hegner
An Analysis of Hatchling Resting Metabolism: in Search of Ecological Correlates that Explain Deviations from Allometric Relations
Marcel Klaassen and Rudolf Drent
Experimental Evidence for the Function of Mate Replacement and Infanticide by Males in a North-temperate Population of House Wrens
L. Henry Kermott, L. Scott Johnson, and Marilyn S. Merkle
Distress Calls in the Acorn Woodpecker
Walter D. Koenig, Mark T. Stanback, Philip N. Hooge, and Ronald L. Mumme
Variation in Duration and Frequency Characters in the Song of the Rufous-collared Sparrow, Zonotrichia Capensis, with Respect to Habitat, Trill Dialects and Body Size
Paul Hanford and Stephen C. Lougheed
Vocalizations of Cooper's Hawks during the Pre-incubation Stage
Robert N. Rosenfield and John Bielefeldt
Coloniality and Breeding Biology of Purple Martins (progne Subis Hesperia) in Saguaro Cacti
Bridget J. Stutchbury
Point Counts from Clustered Populations: Lessons from an Experiment with Hawaiian Crows
Gregory D. Hayward, Cameron B. Kepler, and J. Michael Scott
Intraseasonal Costs of Reproduction in Starlings
Philip C. Stouffer
Winter Distribution of Age and Sex Classes in an Irruptive Migrant, the Migrant, the Evening Grosbeak (coccothraustes Vespertinus)
David R. Prescott
Female Feeding and Male Vigilance during Nesting in Greater Snow Geese
Gilles Gauthier and Josee Tardif
Geographical Morphology of Male Yellow Warblers
David A. Wiedenfeld
Primary Molt and Transequatorial Migration of the Sooty Shearwater
John Cooper, Leslie G. Underhill, and Graham Avery
Sex-specific Differences in Molt Strategy in Relation to Breeding in the Wandering Albatross
H. Weimerskirch
Phylogeny and Biogeography of the Ptiloris Riflebirds (aves: Paradisaeidae)
Bruce M. Beehler and R. J. Swaby
Sampling Blood from Birds: a Technique and an Assessment of Its Effect
Drew J. Hoysak and Patrick J. Weatherhead
Book Reviews
Raymond Pierotti
News and Notes
The Condor
Mewaldt-king Student Research Award
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Survival Rates of Artificial Piping Plover Nests in American Avocet Colonies
Paul M. Mayer and Mark R. Ryan
Observations of Ravens Preying on Adult Kittiwakes
John Klicka and Kevin Winker
The Role of Egg-capping in the Evolution of Eggshell Removal
Kim C. Derrickson and Ian G. Warkentin
Hatching Success in Roof and Ground Colonies of Least Terns
Jeffery A. Gore and Michael J. Kinnison
Breeding Distribution and Habitat of Prairie Falcons in Northern Mexico
Dirk V. Lanning and Mark A. Hitchcock
Short-term Variations in Water-vapor Pressure in Nests of Common Canaries
Michael D. Kern and Michael Knapic
Growth and Development of Thermoregulation in Nestling San Miguel Island Song Sparrows
Mark K. Sogge, Michael D. Kern, Robert Kern, and Charles Van Riper III
An Effect of Instrument Attachment on Foraging Trip Duration in Chinstrap Penguins
Donald A. Croll, Steven D. Osmek, and John L. Bengtson
Orphaned Mallard Brood Travels Alone from Nest to Water
Gary L. Krapu, Christopher P. Dwyer, and Carmen R. Luna
The Loss of Avian Cavities by Injury Compartmentalization
James A. Sedgwick and Fritz L. Knopf
Effect of Nest-site Supplementation on Polygynous Behavior in the House Wren (troglodytes Aedon)
L. Scott Johnson and L. Henry Kermott