General Notes
A Portable Device for Non-destructive Determination of Avian Embryonic Viability
Pierre Mineau and Manuel Pedrosa
Decline of Breeding Least Auklets on St. George Island, Alaska
Daniel D. Roby and Karen L. Brink
Permanent Nest Marker for Long Term Field Studies of Birds
Elizabeth Anne Schreiber and Ralph W. Schreiber
A Simple Trap for Catching Birds in Nest Boxes
Bridget J. Stutchbury and Raleigh J. Robertson
Cover
Back Matter (PDF)
Journal of Field Ornithology
Front Matter (PDF)
Journal of Field Ornithology
Contentss
Territory Defense and Associated Vocalizations of Western Gulls
Judith Latta Hand
Defense of Fall Territories by Mated and Unmated Northern Mockingbirds in Southern Florida
Randall Breitwisch, Marilyn Diaz, Natasha Gottlieb, Ronald Lee, and Julia Zaias
Aspects of the Breeding Biology of an Expanded Population of Glaucous-winged Gulls in British Columbia
Nicolaas A. Verbeek
Nest Attendance by Male and Female Gray Herons
Janine Van Vessem and Dirk Draulans
Returns and Winter-site Fidelity of North American Migrants Banded in Belize, Central America
John C. Kricher and William E. Davis Jr.
Recent Literature
Journal of Field Ornithology
Notes and News
Journal of Field Ornithology