Contents
Growth, Molts, and Plumages of the Gadwall
Lewis W. Oring
The Social Aspects of Reproductive Behavior in the Pintail
Robert I. Smith
Aspects of Thyroid Histology in Black-billed Magpies
Michael J. Erpino
In Memoriam: W Lee Chambers
Lois C. Stone
Pigmentation and Feather Structure in Genetic Variants of the Gouldian Finch, Poephila Gouldiae
Alan H. Brush and Harold Seifried
Sex Ratios and Measurements of Migrant Goshawks
Helmut C. Mueller and Daniel D. Berger
Notes on the Plumages and Generic Status of the Little Blue Heron
Robert W. Dickerman and Kenneth C. Parkes
The Pliocene Rails of North America
J. Alan Feduccia
The Shapes of Birds' Eggs: Mathematical Aspects
F. W. Preston
The Food Call and Display of the Bobwhite Quail (colinus Virginianus)
H. Warrington Williams, A. W. Stokes, and J. Cherrill Wallen
Reproductive Behavior of White-breasted Nuthatches
Lawrence Kilham
A Herring Gull Chick (larus Argentatus) with an Abnormal Bill
William Threlfall
Periodical Literature
The Auk
Notes and News
The Auk
General Notes
Foraging Behavior of Geranospiza Nigra, the Blackish Crane-hawk
Joseph R. Jehl Jr.
Variation in Plumage of the Violaceous Trogon in Surinam
F. Haverschmidt
Goldfinch Attains Age in Excess of 11 Years
Richard S. Phillips
Winter Record of Tennessee Warbler in North Carolina
Elizabeth P. Teulings
First Specimen of the Rough-legged Hawk from Alabama
Robert W. Skinner
Anna's Hummingbird in West Texas
Roland H. Wauer and Michael Kent Rylander
Wandering Albatross in California
Robert O. Paxton
The Genetic Basis of Color Differences Observed in the Mute Swan (cygnus Olor)
R. E. Munro, L. T. Smith, and J. J. Kupa
Crown Display of Golden-crowned Kinglet
Charles H. Blake
Weights of Black-billed Magpies from Southwestern Montana
Kenneth S. Todd Jr.
Audubon's Warbler and Red-breasted Nuthatch Breeding in North Dakota
Roger L. Kroodsma and J. Frank Cassel
Yawning in the Greenfinch
C. J. O. Harrison
Empidonax Hammondii in Pennsylvania
Donald S. Heintzelman
Redwinged Blackbird Destroys Eggs of Common and Roseate Terns
Catherine M. Pessino
Difference in Weight of Male and Female Cormorants
Channing R. Kury
Unusual Nesting Site for House Sparrows
John L. Tatschl
Covers
Front Matter
The Auk
Back Matter
The Auk