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The Auk, Volume 67, Number 4 (1950)

Publication Information
4 (October)


Notes on the Birds of Korea. 433-455.
L. R. Wolfe.
Conditioned Responses In Crows. 456-459.
A. O. Ramsay.
The Growth of Starling, Sturnus Vulgaris, Populations. 460-465.
David E. Davis.
A Nesting Study of the Bronzed Grackle. 466-476.
Arnold Petersen, Howard Young.
The Black Guillemots of Kent Island, Bay of Fundy. 477-485.
Howard Elliott Winn.
Growth Bars In Feathers. 486-491.
Harold Bacon Wood.
The Species--Then and Now. 492-498.
Dean Amadon.
The Flight Mechanism of Swifts and Hummingbirds. 499-504.
D. B. O. Savile.
Notes and News. 522.
Recent Literature. 523-547.
Obituaries. 547-550.
Index To Volume 67. 551-571.

General Notes

The Mexican Grebe, Colymbus D. Brachypterus, At Baton Rouge, Louisiana. 505-506.
George H. Lowery, Jr., Robert J. Newman.
First Ontario Specimen of the Eared Grebe, Colymbus Caspicus Californicus. 506.
L. L. Snyder, C. E. Hope.
Observations on the Food Habits of the Double-Crested Cormorant, Phalacrocorax A. Auritus. 506-508.
Leslie W. Scattergood.
Old Record of Anhinga Anhinga Taken on St. Mary's River, Ontario. 508-509.
Josselyn Van Tyne.
The Man-O'-War-Bird, Fregata Magnificens, on the Coast of Surinam, Dutch Guiana. 509.
Fr. Haverschmidt.
American Egret, Casmerodius A. Egretta, Builds Nest In Massachusetts In August. 509-510.
Samuel A. Eliot, Jr.
The Black Duck, Anas Rubripes, In North Dakota. 510-512.
Merrill C. Hammond, Edward J. Smith, Jr.
On Accipiter Striatus Suttoni Van Rossem. 512.
Boardman Conover.
Sparrow Hawk Pursued By Chimney Swifts. 512.
Frank C. Cross.
Red Ant Predation on Bob-White, Colinus Virginianus, Chicks. 512-513.
W. D. Klimstra.
Incubation Period of the Sandhill Crane, Grus Canadensis Tabida. 513.
Lawrence H. Walkinshaw.
Adoption of a Human Parent By Bob-White, Colinus Virginianus, Chicks. 513.
W. L. Mcatee.
Clapper Rail, Rallus Longirostris, In Maine. 513-514.
Ruth P. Emery.
Long-Tailed Jaeger, Stercorarius Longicaudus, from Montana. 514.
Philip L. Wright.
Bridled Tern, Sterna A. Melanoptera, Taken At Dry Tortugas. 514.
Alexander Sprunt, Jr.
Courtship In the Barn Owl, Tyto Alba. 514-515.
George E. Grube.
Feeding Habits of Great Horned Owls, Bubo Virginianus. 515-516.
Roger O. Olmsted.
First Breeding Record of Black Swift, Nephoecetes N. Borealis, In Colorado. 516.
Owen A. Knorr.
Third Record of Black-Chinned Hummingbird, Archilochus Alexandri, In Oregon. 516-517.
Berton M. Bailey.
Scissor-Tailed Flycatcher, Muscivora Forficata, Feeding At Night. 517.
Philip F. Allan.
The Race of Kingfisher, Alcedo A. Pallasii, Occurring In the Crimea and Ukraine, South Russia. 517.
P. A. Clancey.
First Occurrence of Vermilion Flycatcher, Pyrocephalus Rubinus, In Canada. 517-518.
Thomas C. Swift.
Model Planes and Purple Martins, Progne Subis. 518.
Malcolm Davis.
A Blue Jay, Cyanocitta Cristata, Anting. 518-519.
Malcolm Davis.
The Cedar Waxwing, Bombycilla Cedrorum, At Juneau, Alaska. 519.
Ralph B. Williams.
Recent Record of Bachman's Warbler, Vermivora Bachmanii, from Gulf Coast of Mississippi. 520.
George W. Sciple.
Winter Record of a Cape May Warbler, Dendroica Tigrina, At Pimisi Bay, Ontario. 520.
Louise De Kiriline Lawrence.
The Name Prairie Warbler."". 520-521.
W. L. Mcatee.
Display of Oven-Birds, Seiurus Aurocapillus. 521.
F. J. Freeman.
Northern Yellow-Throat, Geothlypis Trichas, Caught In Spider Web. 521-522.
Lucretius H. Ross.
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