Contents
Prey Capture by the Brown Pelican
Ralph W. Schreiber, Glen E. Woolfenden, and William E. Curtsinger
Influence of Solar and Geomagnetic Stimuli on the Migratory Orientation of Herring Gull Chicks
Frank R. Moore
The Breeding Biology of the Herring Gull in Newfoundland
Karole A. Haycock and William Threlfall
Timing of Site Fixation upon the Wintering Grounds in Sparrows
C. John Ralph and L. Richard Mewaldt
Incubation Behavior and Temperatures of the Mallard Duck
Patrick J. Caldwell and George W. Cornwell
Productivity of the Red-tailed Hawk in Southwestern Montana
Sara Jane Johnson
Relation of Avian Egg Weight to Body Weight
H. Rahn, C. V. Paganelli, and A. Ar.
Gastric Function in a Captive American Bittern
Daniel D. Rhoades and Gary E. Duke
In Memoriam: Francis Marion Weston
George H. Lowery Jr.
Special Review
The Auk
Letter to the Editor
The Auk
Notes and News
The Auk
Index to Volume 92
The Auk
General Notes
First Photographic Record of the Brown Jay in the United States
Wayne A. Shifflett
Two Specimen Records of the Brown Jay from Southern Texas
John P. Hubbard and David M. Niles
Hunting Behavior of Eastern Bluebirds
Peter Goldman
Yearling Male Eastern Bluebird Assists Parents in Feeding Young
Benedict C. Pinkowski
Regurgitative Feeding of Young Black Vultures in December
Jerome A. Jackson
A Sage Sparrow Egg in a Black-throated Sparrow Nest
John R. Gustafson
Short-eared Owl Robs Marsh Hawk of Prey
Keith L. Bildstein and Mark Ashby
Spring Lek Activity of the Lesser Prairie Chicken in West Texas
John A. Crawford and Eric G. Bolen
Specimens of Birds from Amchitka Island, Alaska
Robert D. Jones Jr. and Daniel D. Gibson
Ground-nesting Purple Martins
Alan Pistorius
Clutch Size and Nesting Success in Red-winged Blackbirds
William J. Francis
Possible Bear Predation on a Yellow-bellied Sapsucker Nest
Kathleen E. Franzreb and Alton E. Higgins
Covers
Front Matter
The Auk
Back Matter
The Auk