Contents
Notes on the Birds of Korea
L. R. Wolfe
Conditioned Responses in Crows
A. O. Ramsay
The Growth of Starling, Sturnus Vulgaris, Populations
David E. Davis
A Nesting Study of the Bronzed Grackle
Arnold Petersen and Howard Young
The Black Guillemots of Kent Island, Bay of Fundy
Howard Elliott Winn
Growth Bars in Feathers
Harold Bacon Wood
The Species--then and Now
Dean Amadon
The Flight Mechanism of Swifts and Hummingbirds
D. B. O. Savile
Notes and News
The Auk
Recent Literature
The Auk
Obituaries
The Auk
Index to Volume 67
The Auk
General Notes
The Mexican Grebe, Colymbus D Brachypterus, at Baton Rouge, Louisiana
George H. Lowery Jr. and Robert J. Newman
First Ontario Specimen of the Eared Grebe, Colymbus Caspicus Californicus
L. L. Snyder and C. E. Hope
Observations on the Food Habits of the Double-crested Cormorant, Phalacrocorax a Auritus
Leslie W. Scattergood
Old Record of Anhinga Anhinga Taken on St Mary's River, Ontario
Josselyn Van Tyne
The Black Duck, Anas Rubripes, in North Dakota
Merrill C. Hammond and Edward J. Smith Jr.
On Accipiter Striatus Suttoni Van Rossem
Boardman Conover
Sparrow Hawk Pursued by Chimney Swifts
Frank C. Cross
Incubation Period of the Sandhill Crane, Grus Canadensis Tabida
Lawrence H. Walkinshaw
Clapper Rail, Rallus Longirostris, in Maine
Ruth P. Emery
Long-tailed Jaeger, Stercorarius Longicaudus, from Montana
Philip L. Wright
Bridled Tern, Sterna a Melanoptera, Taken at Dry Tortugas
Alexander Sprunt Jr.
Courtship in the Barn Owl, Tyto Alba
George E. Grube
Feeding Habits of Great Horned Owls, Bubo Virginianus
Roger O. Olmsted
The Race of Kingfisher, Alcedo a Pallasii, Occurring in the Crimea and Ukraine, South Russia
P. A. Clancey
Model Planes and Purple Martins, Progne Subis
Malcolm Davis
A Blue Jay, Cyanocitta Cristata, Anting
Malcolm Davis
The Cedar Waxwing, Bombycilla Cedrorum, at Juneau, Alaska
Ralph B. Williams
Recent Record of Bachman's Warbler, Vermivora Bachmanii, from Gulf Coast of Mississippi
George W. Sciple
The Name Prairie Warbler""
W. L. Mcatee
Display of Oven-birds, Seiurus Aurocapillus
F. J. Freeman
Northern Yellow-throat, Geothlypis Trichas, Caught in Spider Web
Lucretius H. Ross
Covers
Front Matter
The Auk
Back Matter
The Auk