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The Auk, Volume 86, Number 1 (1969)

1 (January)


A New Species of Antpitta From Peru and a Revision of the Subfamily Grallariinae. 1-12.
George H. Lowery, Jr., John P. O'Neill.
Tolerance of Cold and Bergmann's Rule. 13-25.
S. Charles Kendeigh.
In Memoriam: Robert Porter Allen. 26-34.
Alexander Sprunt, Iv.
Navigation by Hawks Migrating in Spring. 35-40.
Helmut C. Mueller, Daniel D. Berger.
Myology of the Leg in Swallows. 41-53.
Abbot S. Gaunt.
Bioenergetics of the Breeding Cycle of the Ring Dove. 54-74.
I. Lehr Brisbin, Jr.
Weight Loss of Birds During Nocturnal Migration. 75-83.
D. J. T. Hussell.
Taxonomic Aspects of Avian Hybridization. 84-105.
Lester L. Short.
Thayer's" Gull in the Niagara Frontier Region". 106-109.
Robert F. Andrle.
Proceedings of the Eighty-Sixth Stated Meeting of the American Ornithologists' Union. 110-124.
L. Richard Mewaldt.
Reviews. 147-157.
Periodical Literature. 158-177.
Notes and News. 178-181.

General Notes

Interspecific Territoriality Between Bewick's and House Wrens. 125-127.
Richard B. Root.
Nesting Behavior of the Chestnut-And-Black Weaver. 127-129.
C. F. Eaglesfield.
Notes on the Boat-Billed Heron in Surinam. 130-131.
F. Haverschmidt.
The Roseate Spoonbill Breeding in Surinam. 131.
F. Haverschmidt.
Grackle Anting With a Mothball. 131.
Charlotte A. Dubois.
Extra Toes on the Halluces of a Common Snipe. 132.
Michael J. Fogarty.
Pathological Changes Associated With Birdshot Embedded in Sandpiper Muscle Tissue. 132-133.
Michael Kent Rylander.
Hairy Woodpeckers Feeding on Pine Seeds. 134-135.
Patrick L. Stallcup.
Spread-Wing Postures in Pelecaniformes, Ciconiiformes, and Falconiformes. 136-139.
George A. Clark, Jr.
Mississippi Kites Fledge Three. 139.
Lena G. Mcbee.
Dual Calling by Birds of Paradise. 139-140.
James J. Dinsmore.
White-Fronted Goose Specimen From Alabama. 141.
Thomas Z. Atkeson, Jr.
Prey in Two Screech Owl Nests. 141.
Paul A. Stewart.
A Great White Heron in Great Blue Nesting Colony. 141-142.
Griffing Bancroft.
Starvation of Alaskan Ruffed and Sharp-Tailed Grouse Caused by Icing. 142-143.
Jerry D. Mcgowan.
Nesting Records of the Eared Grebe in Mexico. 144.
Robert W. Dickerman.
The Nest and Eggs of the Chocolate Tyrant Neoxolmis Rufiventris (Vieillot). 144-145.
Gordon L. Maclean.
The Snowy Plover in Missouri. 146.
David A. Easterla.
Two Male House Sparrows Copulating on Ground With Same Female. 146.
Hervey Brackbill.
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