Contents
Gamma Irradiation of Tree Swallow Embryos and Subsequent Growth and Survival
Reto Zach and Keith R. Mayoh
The Parasitic Behavior of the Bronzed Cowbird in South Texas
Michael D. Carter
The Behavior and Breeding of Adult Maguari Storks
Besty Trent Thomas
Utilization of Benthic-feeding Fish by Inland Breeding Bald Eagles
Dennis D. Haywood and Robert D. Ohmart
Survival and Reproduction of Dispersing Blue Grouse
James E. Hines
Distribution and Natural History of Some Birds from the Departments of San Martin and Amazonas, Northern Peru
Tristan J. Davis
Pair Bonds and Factors Influencing the Diversity of Mating Systems in Brown-headed Cowbirds
Kevin L. Teather and Raleigh J. Robertson
Photoperiodic Regulation of Reproduction in Subtropical Female Yellow-throated Sparrows (gymnorhis Xanthocollis)
P. D. Tewary and Anand S. Dixit
Energetics of Growth in Nestling Savannah Sparrows: a Comparison of Doubly Labeled Water and Laboratory Estimates
Joseph B. Williams and Andrew Prints
Book Reviews
Marcy F. Lawton
Books Received
The Condor
News and Notes
The Condor
Information for Contributors
The Condor
Covers
Back Matter (PDF)
The Condor
Front Matter (PDF)
The Condor
Short Communications
The Effect of Photoperiod and Temperature on Testicular Growth in Captive Black-billed Magpies
Lee R. Jones
Predatory Bird Behavior and Tillage Operations
Larry D. Caldwell
Hematocrits and Erythrocyte Numbers for Cooper's and Sharp-shinned Hawks
James A. Gessaman, Jennifer A. Johnson, and Stephen W. Hoffman
Clutch Overlap in American Coots
Wendy L. Hill
The Nest of the Rusty-belted Tapaculo (liosceles Thoracicus)
Gary H. Rosenberg
Cutaneous Evaporation in Heat-stressed Spotted Sandgrouse
Jacob Marder, Idit Gavrieli-Levin, and Penina Raber
Extended Post-fledging Parental Care in the Red-tailed Tropicbird and Sooty Tern
David G. Ainley, Larry B. Spear, and Robert J. Boekelheide
Mobbing Behavior of a Pair of Elegant Trogons
Jack F. Cully Jr.
Spitefulness, Altruism, and the Cost of a Aggression Evidence against Superterritoriality in Tree Swallows
Raleigh J. Robertson, H. Lisle Gibbs, and Bridget J. Stutchbury
Improving Estimates of Dominance Based on Ratios
Peter Arcese and Donald Ludwig
Predation on Black Rails during High Tides in Salt Marshes
Jules Evens and Gary W. Page
Parental Care at a Red-tailed Hawk Nest Tended by Three Adults
Eduardo Santana C., Richard L. Knight, and Stanley A. Temple
A Possible Case of Adult Intraspecific Killing in the Tree Swallow
Michael P. Lombardo
Daylight Incubation Sex Roles in Wilson's Plover
Peter W. Bergstrom
Vireo: Procedures and Services for the Ornithological Community
J. P. Myers, R. F. Cardillo, and F. B. Gill
Food Transit Rates in Cape Gannets and Jackass Penguins
Rudiger C. Laugksch and David Cameron Duffy
Galapagos Mockingbird Kleptoparasitizes Centipede
Robert L. Curry