Contents
Plumage and Soft-part Variations in the Herring Gull
Hustace H. Poor
Midsummer Wandering of Certain Rocky Mountain Birds
Fred Mallery Packard
Notes on the Development of the Nighthawk
C. David Fowle
Early Morning Song during Middle and Late Summer
Charles Vaurie
Evidence of Trans-gulf Migration
George H. Lowery Jr.
Phoebes in Central Nebraska
H. Elliott Mcclure
A Systematic Study of the Main Arteries in the Region of the Heart--aves Xvii Colymbiformes, Part 1
Fred H. Glenny
Two New Birds from the Andes of Colombia
F. C. Lehmann V.
Ornithological Results of the Baffin Island Expeditions of 1928-1929 and 1930-1931, Together with More Recent Records
J. Dewey Soper
Recent Literature
The Auk
Notes and News
The Auk
Obituaries
The Auk
General Notes
The Koels of the Bay of Bengal
S. Dillon Ripley
The Type Locality of Franklin's Grouse
Boardman Conover
A Long-standing Error
W. L. Mcatee
Dates for Volume 1 of Bonaparte's 'conspectus Generum Avium
A. J. Van Rossem
Avian Leukosis and the Great Black-backed Gull
Montgomery Hare
Purple Grackles 'anting' with Walnut Juice
Mary Emma Groff and Hervey Brackbill
Chipping Sparrow's Nest without Hair Lining
J. T. Nichols
Death of a Trumpeter Swan from Multiple Parasitism
I. Mct. Cowan
A White Fish Crow
Malcolm Davis
Albino Robin at Crawfordsville, Indiana
Howard H. Vogel Jr.
Birds Aboard Ship
Lt. Thane Riney
Unusual Nesting of the Prothonotary Warbler
Albert E. Conway
Acorn Storing by Balanosphyra Formicivora in Panam
Eugene Eisenmann
The White-faced Storm Petrel Off Cape Cod
Jackson Miles Abbott
Western Grebe in Keuka Lake at Branchport, N Y
Verdi Burtch
Little Blue Heron at Branchport, N Y
Verdi Burtch
King Rail at Branchport, N Y
Verdi Burtch
Duck Hawk Nesting in Colorado
Alfred M. Bailey and Robert J. Niedrach
Parasitic Jaeger at Branchport, N Y
Verdi Burtch
The Winter Range of the Great Blue Heron
May Thacher Cooke
Sage Thrasher in Southeastern Texas
A. K. Mckay
The Florida Blue Jay at Sarasota, Florida
Charles L. Phillips
A Spring Record for the Arkansas Kingbird in Southern Mississippi
Thos. D. Burleigh
Lark Bunting Records for Ohio
Lawrence E. Hicks
Additional Notes on the Arkansas Kingbird in Luce County, Michigan
Oscar Mckinley Bryens
Migration of the Sooty Shearwater Off the Washington Coast
Locke L. Mackenzie
Lesser Black-backed Gull in New York Harbor
H. G. Alexander
Rare Utah Birds
Claude T. Barnes
Roseate Spoonbill Nesting on the Sabine Refuge, Louisiana
R. E. Griffith, V. L. Childs, and Faxon W. Cook
Predation on Living Prey by the Black Vulture
Alexander Sprunt Jr.
Concerning the Status of Hutchins's Goose on the Atlantic Coast
Albert E. Conway
European Widgeon in Eastern Pennsylvania
Albert E. Conway
Correspondence
Quantitative Ornithology
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk