eWestern Birds

The Quarterly Journal of Western Field Ornithologists

Vol. 40, No. 4
June 2009
Western Field Ornithologists

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Contents
MAIN ARTICLES

Recent Purple Martin Declines in the Sacramento Region of California: Recovery Implications
Daniel A. Airola and Dan Kopp

Further Decline in Nest-Box Use by Vaux’s Swifts in Northeastern Oregon
Evelyn L. Bull and Charles T. Collins

Use of a Nesting Platform by Gull-billed Terns and Black Skimmers at the Salton Sea, California
Kathy C. Molina, Mark A. Ricca, A. Keith Miles, and Christian Schoneman

Birds of Prey and the Band-tailed Pigeon on Isla Guadalupe, Mexico
Juan-Pablo Gallo-Reynoso and Ana-Luisa Figueroa-Carranza

Food Habits of Wild Turkeys in National Forests of Northern California and Central Oregon
Greta M. Wengert, Mourad W. Gabriel, Ryan L. Mathis, and Thomas Hughes

Seasonal Variation in the Diet of the Barn Owl in Northwestern Nevada
Abigail C. Myers, Christopher B. Goguen, and Daniel C. Rabbers

NOTES

First Record of a Mangrove Yellow Warbler for Arizona
Nathan K. Banfield and Patricia J. Newell

Prey Remains in Nests of Four Corners Golden Eagles, 1998–2008
Dale W. Stahlecker, David G. Mikesic, James N. White, Spin Shaffer, John P. DeLong, Mark R. Blakemore, and Craig E. Blakemore

Book Reviews
Dave Trochlell and John Sterling

Featured Photo: Juvenal Plumage of the Rufous-crowned Sparrow
Brad Schram

Index
Daniel D. Gibson

Front cover photo by © Todd Easterla of Rancho Cordova, California: Streaked Shearwater (Calonectris leucomelas), Monterey Bay, Monterey County, California, 12 October 2008. A species of the western Pacific, the Streaked Shearwater has been substantiated once in Oregon, 18 times in California (most frequently on Monterey Bay but once inland), and once in Wyoming.

Back cover “Featured Photo” by © Brad Schram of Arroyo Grande, California: juvenile Rufous-crowned Sparrow (Aimophila ruficeps), Deer Canyon, San Luis Obispo County, California, 6 August 2006. Note the pencil-streaked upper breast and sides over buff, streaked crown, and facial pattern, a paler version of the adult’s.