Contents
Life History of the Mexican Trogon
Alexander F. Skutch
Notes on Hummingbirds at Chiriqui, Panama
C. Brooke Worth
Pairing Responses of Free-living Valley Quail to Sex-hormone Pellet Implants
J. T. Emlen Jr. and F. W. Lorenz
Temporary Deafness in Birds
Charles W. Bray and W. R. Thurlow
Nest Sanitation and an Alleged Releaser
A. L. Rand
Nesting Habits of the Eastern Phoebe
Wendell P. Smith
Birds Recorded in the Federal District and States of Puebla and Mexico by the 1939 Semple Expedition
George Miksch Sutton and Thomas D. Burleigh
The Races of Empidonax Affinis
Allan R. Phillips
Recent Literature
The Auk
Correspondence
The Auk
Obituaries
The Auk
Notes and News
The Auk
General Notes
Black-throated Gray Warbler on the Coast of South Carolina
Alexander Sprunt Jr.
Distribution of Carolina Wren
Maurice Brooks
White-tailed Kite in Florida
William H. Drury Jr. and Henry M. Parker
Long Incubation by a Carolina Chickadee
Eugene P. Odum
Ivory-billed Woodpecker and Wild Turkeys in Louisiana
George H. Bick
A Distributional Note on Maine Spruce Grouse
Leonard J. Uttal
The Newfoundland Robin in Michigan
Pierce Brodkorb
An Iowa Record of the Pallid Horned Lark
Emmet R. Blake
Pintail in Colombia
Frederick C. Lincoln
Brown Pelican in Nevada
Frederick C. Lincoln
Random Notes from Florida
Thomas D. Burleigh
Bird Records from Virginia
William Montagna and William A. Wimsatt
Notes from Churchill, Manitoba
Oscar Hawksley
International Swallows
Minna Anthony Common
Nesting of Mallard, Pintail and Black Duck at Washington, D C
George A. Petrides
Abnormal Primary of Ring-billed Gull
T. M. Shortt
An Injured Meadowlark
Clarence F. Smith
Calcium Chloride--a Death Lure for Crossbills
Gordon M. Meade
A Bird Tragedy
Rollin H. Baker
Speed of the Starling
Everett W. Jameson Jr.
Speed of a Woodcock
Rollin H. Baker and Coleman C. Newman
A Duck Hawk Attacks a Raven
J. Southgate Hoyt
Hunting Strategy of Pigeon Hawks
Karl W. Kenyon
A Hummingbird Feeding Habit
George A. Petrides
Goldfinch and Field Sparrow Rifle Small Galls
Hervey Brackbill
Crows Feeding on Larval Amphibians
W. J. Hamilton Jr.
Leghorn Cockerels Eat Baby Quail and Wrens
T. E. Musselman
Specific Relationships of the Golden and Yellow Warblers
John W. Aldrich
Audubon's Autobiography
Bayard H. Christy
Termite-eating by Birds in British Columbia
I. Mct Cowan
Covers
Front Matter
The Auk
Back Matter
The Auk