Contents
The Mechanical Recording of the Nesting Activities of Birds
S. Charles Kendeigh and S. Prentiss Baldwin
Some Studies of the American Dipper or Water Ouzel
Clyde E. Ehinger
The Sex of the Incubating Killdeer
Gayle Pickwell
Texan Bird Habitats Ii
C. W. G. Eifrig
Further Records of the Birds of the Boston Public Garden from the Notes of Horace W Wright
Gordon B. Wellman
Notes from Eastern Long Island, New York
W. Todd Helmuth
Notes on Some Summer Birds of Chefoo, China
Tsen-hwang Shaw
The Menace of Oil Pollution
Frederick C. Lincoln
Obituaries
The Auk
Notes and News
The Auk
Index to Volume Xlvii
The Auk
Dates of Issue
The Auk
Recent Literature
Acworth's 'this Bondage'
R. C. M.
Collinge on British Corvidae
W. L. M.
Bird Protection in Japan
W. L. M.
Shorter Papers
The Auk
The Ornithological Journals
The Auk
General Notes
Glaucous Gull (larus Hyperboreus) in Wisconsin
Clarence S. Jung
Play Instinct in Gulls
Phoebe Knappen
Sooty Shearwater at Daytona Beach, Florida
R. J. Longstreet
Notes on Geese at Painesville, Ohio
E. W. Hadeler
Baldpates and Turnstones at Jackson, Mich
Edith K. Frey
Ducks in the Valley of Virginia
J. J. Murray
Diving Habits in the Genus Nyroca
Charles W. Townsend
Spoonbills at Marco, Fla
Thos. E. Winecoff
Roseate Spoonbill (ajaia Ajaja) Taken in Southern Alabama
Helen M. Edwards
Yellow-crowned Night Heron in Lancaster County, Pennsylvania
Herbert H. Beck
Little Blue Heron Breeding in Delaware
C. J. Pennock
The Little Blue Heron (florida Caerulea Caerulea) in the North Carolina Mountains
Alexander Sprunt Jr. and James J. Murray
Little Blue Herons in Barry County, Michigan
Lawrence H. Walkinshaw
American Egret at Bellevue, Michigan
Lawrence H. Walkinshaw
Snowy Egret at Cape May, N J
Witmer Stone
The Snowy Egret (egretta Thula Thula) near Washington, D C
William Howard Ball
Snowy Egret and Other Birds near Media, Pa
V. A. Debes
Egrets, and Little Blue Herons in Wisconsin
O. J. Gromme
The Sarus Crane of Falmouth, Mass
Lombard Carter Jones
Proper Name of the Virginia Rail
Witmer Stone
A Rail Conundrum
Charles A. Urner
Coot Breeding in Florida
O. C. Van Hyning
Killdeer in Connecticut
Devere Allen
Willet (catoptrophorus Semipalmatius Semipalmatus) Breeding in Southern New Jersey
Edward S. Weyl and Julian K. Potter
Nesting of the Upland Plover near Lexington, Va
J. J. Murray
Western Sandpiper in Massachusetts in Spring
James L. Peters
Buteo Platypterus in Porto Rico
James L. Peters
Mass Occurrence of the Duck Hawk (falco Peregrinus Anatum) in the Mountains of North Carolina
Alexander Sprunt Jr. and James J. Murray
Urban Burrowing Owls
Clinton G. Abbott
Great Horned Owl (bubo V Virginianus) Breeding in the District of Columbia
William Howard Ball
The European Goldfinch at Buffalo, N Y
Albert R. Shadle
Unusual Markings on Rose-breasted Grosbeak
John William Moyer
Two Unusual Nesting Sites of the Carolina Junco
Alexander Sprunt Jr.
Rocky Mountain Orange-crowned Warbler (vermivora Celata Orestura) in Clayton County, Iowa
Oscar P. Allert
Nesting of the Cerulean Warbler in Piedmont, Virginia
Ruskin S. Freer
A Breeding Record for the Winter Wren in the Mountains of North Carolina
Alexander Sprunt Jr. and James J. Murray
Intoxicated Robins
W. H. Bergtold
Nantucket Island Notes
George H. Mackay
Unusual Observations for Western Pennsylvania
Reinhold L. Fricke
Notes on Water Birds of the Piedmont of Virginia
Ruskin S. Freer
Notes from Eastern North Carolina
J. J. Murray
Some Recent Notes from Coastal South Carolina
Alexander Sprunt
Some Records from the Savannah River Entrance during 1929
Ivan R. Tomkins
Notes on Some Birds Uncommon in Northern Illinois
Pierce Brodkorb
Some 1930 Notes from Madison, Wis
John S. Main
The Supposed Plumage of the Eocene Diatryma
Alexander Wetmore
Another Audubon Copper-plate Located
John B. May
Covers
Front Matter
The Auk
Back Matter
The Auk