Contents
Dynamics of Postnuptial Molt in Free-living Mountain White-crowned Sparrows
Galen A. Morton and Martin L. Morton
Postnuptial Molt in Harris' Sparrows
William A. Degraw and Michael D. Kern
Estimates of the Mass of Structures Other Than Plumage Produced during Molt by White-crowned Sparrows
James R. King and Mary E. Murphy
Experimental Studies of Nest-destroying Behavior by Cactus Wrens
Laurie Stuart and Simons Lee Simons
Experiments on Indeterminate Laying in House Wrens and European Starlings
E. Dale Kennedy and Harry W. Power
Bird Species Distribution Patterns in Riparian Habitats in Southeastern Arizona
Thomas R. Strong and Carl E. Bock
Pre- and Post-el Nino Southern Oscillation Comparison of Nest Sites for Red-tailed Tropicbirds Breeding in the Central Pacific Ocean
Larry Clark, Ralph W. Schreiber, and Elizabeth A. Schreiber
Stable Isotope Analysis of Marbled Murrelets: Evidence for Freshwater Feeding and Determination of Trophic Level
Keith A. Hobson
Patterns and Variability of Growth in the Yellow-eyed Penguin
Yolanda Van Heezik
Amino Acid Composition of Feather Barbs and Rachises in Three Species of Pygoscelid Penguins: Nutritional Implications
Mary E. Murphy, James R. King, Tood G. Taruscio, and Geoffrey R. Geupel
Effect of Sex, Stage of Reproduction, Season, and Mate Removal on Prolactin in Dark-eyed Juncos
Ellen D. Ketterson, Val Nolan Jr., Licia Wolf, and Arthur R. Goldsmith
Lead Hazards Within the Range of the California Condor
Oliver H. Pattee, Peter H. Bloom, J. Michael Scott, and Milton R. Smith
Survival Estimates of Indigo Buntings: Comparison of Banding Recoveries and Local Observations
Robert B. Payne and Laura L. Payne
North American Bird Migrants in Paraguay
Floyd E. Hayes, Steven M. Goodman, Jennifer A. Fox, Tarsicio Granizo Tamayo, and Nancy E. Lopez
Metabolic and Respiratory Physiology of an Arid-adapted Autralian Bird, the Spinifex Pigeon
Philip C. Withers and Joseph B. Williams
Patterns of Elevational and Latitudinal Distribution, Including a "niche Switch," in Some Guans (cracidae) of the Andes
J. V. Remsen Jr. and Steven W. Cardiff
Nest-site Selection by Eastern Screech-owls in Central Kentucky
James R. Belthoff and Gary Ritchison
Nest-defense Behavior of Red-tailed Hawks
David E. Andersen
Population Parameters of the Ancient Murrelet
Anthony J. Gaston
Breeding Biology and Nesting Success of Palila
Sandra M. Pletschet and Jeffrey F. Kelly
Sugar Preferences in Hummingbirds: the Influence of Subtle Chemical Differences on Food Choice
Carlos Martinez and Del Rio
Effects of Nest Parasitism and Nest Location on Eggshell Strength in Waterfowl
Mark L. Mallory and Patrick J. Weatherhead
The Biological Significance of Age-specific Return Schedules in Breeding Purple Martins
Eugene S. Morton and Kim C. Derrickson
Strong Neighbor-stranger Discrimination in Song Sparrows
Philip K. Stoddard, Michael D. Beecher, Cynthia L. Horning, and Mary S. Willis
Carcass Composition of Nonbreeding Blue-winged Teal and Northern Pintails in Yucatan, Mexico
John D. Thompson and Guy A. Baldassarre
News and Notes
The Condor
Reviewers for Volume 92
The Condor
Index to Volume 92
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Commentary
Hematological Studies in Birds
M. Ferrer
Reply to Ferrer
M. L. Puerta
Short Communications
Maintenance of Pair-bonds in the House Finch
Philip N. Hooge
Location and Description of a Marbled Murrelet Tree Nest Site in Alaska
Susan E. Quinlan and Jeffrey H. Hughes
Wind as a Factor in the Orientation of Entrances of Cactus Wren Nests
Charles F. Facemire, Michael E. Facemire, and Mark C. Facemire
Kleptoparasitism of Adult and Immature Brown Pelicans by Heermann's Gulls
Bernie R. Tershy, Dawn Breese, and Greg M. Meyer
Corrections and Additions to the Brazilian Avifauna
Douglas F. Stotz
Additional Records of Birds from the Distrito Federal, Mexico, Including a Possible Hybrid Spizella
Kenneth C. Parkes
Interspecific Aggression for Food by a Granivorous Bird
Upo M. Savalli