Contents
On the Origin and Evolution of Nest Building by Passerine Birds
Nicholas E. Collias
Nesting Ecology of Townsend's Warblers in Relation to Habitat Characteristics in a Mature Boreal Forest
Steven M. Matsuoka, Colleen M. Handel, and Daniel D. Roby
Variation in Song Sparrow Nest Defense: Individual Consistency and Relationship to Nest Success
Margret I. Hatch
Effects of Oiling on Feeding Behavior of Sanderlings and Semipalmated Plovers in New Jersey
Joanna Burger
Effects of the Exxon Valdez Oil Spill on Birds: Comparisons of Pre- and Post-spill Surveys in Prince William Sound, Alaska
Stephen M. Murphy, Robert H. Day, John A. Wiens, and Keith R. Parker
Trophic Relationships among Seabirds in Central California: Combined Stable Isotope and Conventional Dietary Approach
William J. Sydeman, Keith A. Hobson, Peter Pyle, and Elizabeth B. Mclaren
Environmental and Habitat Correlates of Pasture Use by Nonbreeding Shorebirds
Mark A. Colwell and Sarah L. Dodd
Factors Affecting the Success of Colony Departure by Thick-billed Murre Chicks
H. Grant Gilchrist and Anthony J. Gaston
The Effects of Parental Quality and Timing of Breeding on the Growth of Nestling Thick-billed Murres
J. Mark Hipfner
Intraspecific Variability in Nestling Growth and Fledging Behavior of Cassin's Auklets at Triangle Island, British Columbia
Yolanda E. Morbey and Robald C. Ydenberg
Impacts of Predators: Center Nests Are Less Successful Than Edge Nests in a Large Nesting Colony of Least Terns
Dianne H. Brunton
Effects of Spring Environment on Nesting Phenology and Clutch Size of Black Brant
Mark S. Lindberg, James S. Sedinger, and Paul L. Flint
Sources of Variation in Clutch Size, Egg Size and Clutch Completion Dates of Semipalmated Plovers in Churchill, Manitoba
Erica Nol, Michele Sullivan Blanken, and Laura Flynn
Circulating Prolactin of Incubating Male Wilson's Phalaropes Corresponds to Clutch Size and Environmental Stress
David J. Delehanty, Lewis W. Oring, Albert J. Fivissani, and Mohamed E. Halawani
Behavior of Cackling Canada Geese during Brood Rearing
Ada C. Fowler and Craig R. Ely
Cultural Evolution in the Eurasian Tree Sparrow: Divergence Between Introduced and Ancestral Populations
Anthony L. Lang and Jon C. Barlow
Mate Protection and Winter Pair-bonds in Black-capped Chickadees
David Lemmon, Matthew L. Withiam, and Christopher P.L. Barkan
Patterns of Dominance and Aggressive Behavior in Blue Jays at a Feeder
Keith A. Tarvin and Glen E. Woolfenden
Evaluation of Four Methods for Estimating Parrot Population Size
David G. Casagrande and Steven R. Beissinger
Migration by Flapping or Soaring: Flight Strategies of Marsh, Montagu's and Pallid Harriers in Southern Israel
Reto Spaar and Bruno Bruderer
Seasonal Effects on Metabolism and Thermoregulation in Northern Bobwhite
David L. Swanson and Duane P. Weinacht
Intergeneric Relationships of the New World Jays Inferred from Cytochrome B Gene Sequences
Alejandro Espinosa Monteros and Joel Cracraft
Intraspecific Variation and Evolutionary Reduction of Tendon Ossification in Dendrocincla Woodcreepers
Anthony H. Bledsoe, Robert J. Raikow, and Loretta S. Crowell
Book Reviews
The Condor
Briefly Noted
The Condor
News and Notes
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
Mating System of the Dusky Antbird, a Tropical Passerine, as Assessed by Dna Fingerprinting
Robert C. Fleischer, Cheryl L. Tarr, Eugene S. Morton, Alexander Sangmeister, and Kim C. Derrickson
On the Behavior of the Black Swift
Manuel Marin
Do Blood Parasites Affect Paternity, Provisioning and Mate-guarding in Purple Martins?
Richard H. Wagner, Priya Davidar, Malcolm D. Schug, and Eugene S. Morton
Cooperative Breeding in Gray Jays: Philopatric Offspring Provision Juvenile Siblings
Thomas A. Waite and Dan Strickland
Memory for Hoarded Food: an Aviary Study of the European Nuthatch
Roger Hardling, Hans Kallander, and Jan-Ake Nilsson
A New Application for Transponders in Population Ecology of the Common Tern
Peter H. Becker and Helmut Wendeln
Fat Loads and Flightlessness in Wilson's Phalaropes
Joseph R. Jehl Jr.
Relative Costs of Prebasic and Prealternate Molts for Male Blue-winged Teal
William L. Hohman, Scott W. Manley, and David Richard
Comparison of Pellets Versus Collected Birds for Sampling Diets of Double-crested Cormorants
Clayton E. Derby and James R. Lovvorn
Digestion of Chitin by Northern Bobwhites and American Robins
Jennifer I. Weiser, Adam Porth, David Mertens, and William H. Karasov