Contents
A Winter Crow Roost
Charles W. Townsend
The Pterylosis of the Wild Pigeon
Hubert Lyman Clark
Sexual Selection and Bird Song
Chauncey J. Hawkins
List of Birds Collected on the Harvard Peruvian Expedition of 1916
Outram Bangs and G. K. Noble
Notes on North American Birds Vi
Harry C. Oberholser
The Subspecies of Larus Hyperboreus Gunnerus
Harry C. Oberholser
Notes and News
The Auk
Index to Volume Xxxv
The Auk
Dates of Issue
The Auk
Recent Literature
Birds of the National Parks
T. S. P.
The Ornithological Journals
The Auk
Publications Received
The Auk
General Notes
The Specific Name of the Glossy Ibis
Harry C. Oberholser
Cinnamon Teal (querquedula Cyanoptera) in North Dakota
Harry C. Oberholser
The Black Vulture (catharista Urubu) in Indiana
R. W. Williams
Yellow-crowned Night Heron at Chicago
Nathan F. Leopold Jr.
The Status of Buteo Platypterus Iowensis
Harry C. Oberholser
Flight of Horned Owls in Canada
J. Dewey Soper
Picoides Arcticus in Florida
Harry C. Oberholser
Early Nesting of the Northern Pileated Woodpecker in Pennsylvania
Richard F. Miller
Relative Length of the Intestinal C[ae]ca in Trogons
W. Dew. Miller
The Range and Status of Aphelocoma Californica Hypoleuca Ridgway
Harry C. Oberholser
The Starling at Plattsburg, N Y
Ludlow Griscom
The Northernmost Record of Icterus Parisorum
Harry C. Oberholser
Blue-winged Warbler Once More Nesting at South Sudbury, Mass
Horace W. Wright
Russet-backed Thrush (hylocichla Ustulata Ustulata) in New Mexico
Harry C. Oberholser
Notes from the Vicinity of Washington, D C
M. T. Cooke
Scarcity of Birds in the Spring Migration of 1918
Robt. Barbour
Notes on Six Birds from Georgia
Arthur T. Wayne
Correspondence
A Correction
The Auk
Covers
Front Matter
The Auk
Back Matter
The Auk