Contents
Notes on Donacobius
Ludlow Griscom
Notes on the Birds of Porcher Island, B C
Allan Brooks
Some Aspects of the Group Habit among Birds
Charles L. Whittle
Remarks on Methods in Measuring Birds
Elsie M. Reichenberger
Bird Banding and Bird Migration Work at Rossitten on the Baltic Sea
Theodor G. Ahrens
The Connecticut Valley--a Highway for Bird Migration
Aaron C. Bagg
Blue Feathers
Wilder D. Bancroft, Emile M. Chamot, Ernest Merritt, and Clyde W. Mason
Two New Birds from Nicaragua
Wharton Huber
Rough Notes on the Avifauna of Paita, Peru
G. E. Verrill
Nesting of the Evening Grosbeak in Northern Michigan
J. Stokley Ligon
Notes and News
The Auk
Recent Literature
Dwight on a New Gull
W. S.
The Ornithological Journals
The Auk
General Notes
Little Auk at Sand Bridge, Southeastern Virginia
J. C. O'Conor
Razor-billed Auk in North Carolina
Witmer Stone
Double-crested Cormorant at Waterford, N Y
Edgar Bedell
Field Identification of Ducks
Charles W. Townsend
Blue Geese Alighting in Northern Ohio
E. O. Doolittle
Some Wisconsin Shore-bird Records
H. L. Stoddard
Dr Blagden on the Heath Hen
J. A. Farley
An Additional Record for the Extinct Porto Rican Quail-dove
Alexander Wetmore
Turkey Vultures in Alberta
James E. Horning
The Gyrfalcon in Wisconsin
H. L. Stoddard
What is Buteo Rufescentior Salvin and Godman?
Robert Ridgway
Richardson's Owl (cryptoglaux Funerea Richardsoni) in Cohasset, Mass
Helen Granger Whittle
Richardson's Owl in Michigan
M. J. Magee
Note on the Generic Name Pteroptochos Kittlitz
Harry C. Oberholser
The Generic Name Euscarthmus Wied
Harry C. Oberholser
Crows Building in Low Willows
James E. Horning
The Mynah--a Study in Adaptation
Dayton Stoner
Spinus Pinus Macropterus, an Addition to the a O U Check-list
W. E. Clyde Todd
Nesting of the Junco (junco Hyemalis Hyemalis) in Southern Connecticut
Arthur W. Brockway
A Dickcissel in Rhode Island in Winter
Henry E. Childs
Pseudospermestes Not a Valid Genus
James P. Chapin
Another Calaveras Warbler in Colorado
W. H. Bergtold
Mockingbird in Winter in Lake Co, Ohio
E. A. Doolittle
The Identity of Gmelin's Todus Plumbeus
Thomas E. Penard
Notes on New York Birds
S. C. Bishop
Notes from St Lawrence Co, N Y
Douglas Ayers
Notes from Sault Ste Marie, Mich
M. J. Magee
Some Notes on Rare Michigan Birds
Norman A. Wood
Two Unusual Winter Records for the Chicago Area
Chreswell J. Hunt
Red Squirrel Eating Young Hairy Woodpecker
Verdi Burtch
Note on Bonaparte's Continuation of Wilson's Ornithology
Samuel N. Rhoads
Correspondence
Covers
Front Matter
The Auk
Back Matter
The Auk