Contents
A New Species of Wood-wren from Peru
John W. Fitzpatrick, John W. Terborgh, and David E. Willard
Plumage and Molt in Shorebirds Summering at Enewetak Atoll
Oscar W. Johnson
Early Breeding Season Behavior of Red-headed Woodpeckers
Lawrence Kilham
Salt Water Tolerance and Water Turnover in the Snowy Plover
James R. Purdue and Howard Haines
Sounds of Laysan and Black-footed Albatrosses
Donald W. Sparling Jr.
Laysan Albatross Breeding Behavior
Eugene A. Lefebvre
The Cryptic Occipital Spot in the Accipitridae (falconiformes)
John C. Hafner and Mark S. Hafner
Effect of Cowbird Parasitism on American Goldfinch Nesting
A. L. A. Middleton
Nestling Biology of the Field Sparrow
Louis B. Best
Behavior of Ruddy Duck Broods in Utah
David E. Joyner
Composition of Eggs of Several Bird Species
Robert E. Ricklefs
Correspondence
The Auk
Notes and News
The Auk
General Notes
Photographic Confirmation of Giant Snipe in Argentina
Ira Joel Abramson
Polygynous Breeding of Short-billed Marsh Wrens
Richard D. Crawford
Effects of a Late Spring Storm on a Local Dusky Flycatcher Population
Robert C. Eckhardt
Five Bird Species New to Colombia
J. V. Remsen Jr.
Relationships Between Egg Pigmentation and Hatching Sequence in the Herring Gull
Michael L. Chamberlin
Abnormal Nest Building in the Eastern Phoebe
Harmon P. Weeks Jr.
The Effect of Tree Hardness on Woodpecker Nest Entrance Orientation
Richard N. Conner
Harris' Hawks Lay Three Clutches of Eggs in One Year
William J. Mader
Nest Site Selection for Prairie Falcons
Edward J. Pitcher
Clutch Size Determination, Egg Size, and Eggshell Thickness in the Pie-billed Grebe
G. N. Fugle and S. I. Rothstein
American Redstart Feeding by Artificial Light
Laura E. Bakken and George S. Bakken
Premature Parental Behavior of a Red-shouldered Hawk
J. Randolph Acker
Predation on Gulls by Bald Eagles in Washington
James L. Hayward Jr., Wm. Humphrey Gillett, Charles J. Amlaner Jr., and John F. Stout
Foods of Nestling Red-cockaded Woodpeckers in Coastal South Carolina
Richard F. Harlow and Michael R. Lennartz
Bilateral Size Dimorphism in House Sparrow Gynandromorphs
Peter E. Lowther
The Effect of Time of Day on Avian Census Results
William M. Shields
Homing of Subadult Oldsquaws
R. M. Alison
Brown-capped Rosy Finch Nesting in New Mexico
David Paul Hendricks
Unusual Foraging by a Fork-tailed Storm Petrel
Robert Gill Jr.
First North American Record of the Asian Needle-tailed Swift, Hirundapus Caudacutus
Clayton M. White and William M. Baird
Parasitic Jaegers Prey on Adult Ptarmigan
John H. Eisenhauer and Jack Paniyak
Green Heron Nesting in a Wood Duck Box
Allan P. Sandilands
Snowy Egrets Attracted to Prey by Common Terns
Robert I. Bertin
Possible Ecological Role of Food Caches of Loggerhead Shrike
Roger D. Applegate
Allopreening in the Black Vulture
F. Haverschmidt
Roosting Habits of the Swallow-tailed Kite
F. Haverschmidt
Male Prairie Warbler Dies during Courtship
Ellen D. Ketterson
Implications of Recaptures of Broad-tailed Hummingbirds Banded in Colorado
Nickolas M. Waser and David W. Inouye
Brown-headed Cowbird Courting a Purple Martin
Charles R. Brown
Covers
Front Matter
The Auk
Back Matter
The Auk