Western Birds

Vol. 6, No. 1March 1975

Western Field Ornithologists

Front Matter

Back Matter

Western Birds 45(4) Front Cover


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Main Articles

Population Fluctuation in a Yellow-Headed Blackbird Marsh
Roger J. Lederer, Walter S. Mazen, Peter J. Metropulos

Status of the Yellow-Billed Loon (Gavia Adamsii) in
the Western United States and Mexico
J. V. Remsen, Jr., Laurence C. Binford


Boreal Owl Sighting in Yellowstone National Park
Craig R. Kuchel, Robert A. Garrott

Effectiveness of Brown Creeper's Concealment Behavior
B. Riley Mcclelland

The Status of the Gray Flycatcher in Washington State
Norman Lavers

Second Record for the Phainopepla in Colorado
Joel D. Hubbard, Allen B. Crockett, Paula L. Hansley

The Sprague's Pipit Reaches California
Guy Mccaskie

Black-Throated Blue Warbler in Utah
Richard D. Porter, Larry C. Pritchett