The Auk, Volume 90, Number 2 (1973)

Journal
Auk
Volume
90
Issue
2 (April)
Year
1973

CONTENTS

Black-Capped Gnatcatcher, a New Breeding Bird for the United States; With a Key to the North American Species of Polioptila. 257-262.
Allan R. Phillips, Steven Speich, William Harrison.
Survival Rates for Visited and Unvisited Nests of Bicolored Antbirds. 263-267.
Edwin O. Willis.
Summer Foods of Cattle Egrets in North Central Florida. 268-280.
Michael J. Fogarty, Willa Mae Hetrick.
The Effect on Pigeon Homing of Anesthesia During Displacement. 281-286.
Charles Walcott, Klaus Schmidt-Koenig.
An Aggressive Display and Related Behavior in the Loggerhead Shrike. 287-298.
Susan M. Smith.
Clinal Variation in White-Throated Swifts From Utah and the Rocky Mountain Region. 299-306.
William H. Behle.
Seasonal Changes in the Internal Anatomy of Spruce Grouse in Alberta. 307-317.
B. A. Pendergast, D. A. Boag.
Transferrin Polymorphisms in the Ring-Necked Pheasant. 318-323.
David G. Montag, Robert B. Dahlgren.
The Air-Sac Systems and Buoyancy of the Anhinga and Double-Crested Cormorant. 324-340.
Clark L. Casler.
Coexistence of Bewick's Wrens and House Wrens in Oregon. 341-352.
Donald E. Kroodsma.
Estimating Numbers in a Roosting Congregation of Blackbirds and Starlings. 353-358.
Paul A. Stewart.
Development of Young Horned Larks. 359-363.
Robert C. Beason, Edwin C. Franks.
In Memoriam: Edwin Richard Kalmbach. 364-374.
Jack F. Welch.
A Radio-Biotelemetry System for Monitoring Body Temperature and Activity Levels in the Zebra Finch. 375-383.
Vaughan A. Langman.
Pelagic Records of Glaucous-Winged and Herring Gulls in the North Pacific Ocean. 384-393.
Gerald A. Sanger.
The Relationships of the Silky Flycatchers. 394-410.
Charles G. Sibley.
Thirty-Second Supplement to the American Ornithologists' Union Check-List of North American Birds. 411-419.
s.n.
Reviews. 443-459.
s.n.
Periodical Literature. 460-482.
s.n.
Obituaries. 483-487.
s.n.
Letter to the Editor. 487-488.
s.n.
Notes and News. 488-490.
s.n.

General Notes

A White-Winged Black Tern Specimen From Canada. 420.
P. A. Pearce.
First Specimen of Arctic Loon From Texas. 420-421.
Keith A. Arnold, James C. Henderson.
Absence of the Ambiens Muscle in the Common Myna: A Correction. 421.
Robert J. Raikow.
Conflict Between a Mallard Hen With Brood and a Male Red-Winged Blackbird. 422.
E. Paul Peloquin.
Ja. 422-423.
Raymond J. Fleetwood.
Egg Size and Shell Thickness in the Franklin's Gull. 423-426.
Joanna Burger.
Propagation of Barn Owls in Captivity. 426-428.
John R. Maestrelli.
An Erythristic Specimen of the Rufous-Sided Towhee. 428-429.
Jon S. Greenlaw.
White-Crowned Sparrow Parasitized by Brown-Headed Cowbird in Western Washington. 429-431.
Robert A. Lewis.
Dominance Relationships in Nectar-Feeding Birds At St. Croix. 431-432.
Charles F. Leck.
Absence of Individual Distance" in the Tree Swallow During Adverse Weather". 432-433.
Thomas C. Grubb, Jr.
Snowy Owl Predation on Lapland Longspur Nestlings Recorded on Film. 433-435.
Thomas W. Custer.
Growth and Development of Long-Billed Curlew Chicks. 435-438.
Dennis M. Forsythe.
Pleistocene Birds From the Valley of Mexico. 438-440.
Pierce Brodkorb, Allan R. Phillips.
New Tern Records From Caribbean Honduras. 440-442.
Miklos D. F. Udvardy, Constance S. De Beausset, Mitzi Ruby.
A Second Brood Attempt by the Purple Martin. 442.
Charles Brown.
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