eWestern Birds

Contents

MAIN ARTICLES

Arizona Bird Committee Report, 2010–2014 Records
Gary H. Rosenberg, Kurt Radamaker, and David Vander Pluym

Age Structure of Adult Brown-headed Cowbirds in Southwest Colorado
Joseph C. Ortega and Catherine P. Ortega

Status of the California Gnatcatcher at the Northern Edge of Its Range
Daniel S. Cooper, Jennifer Mongolo, and Chris Dellith

NOTES

First Records of the Asian Rosy-Finch in Alaska and North America
Isaac J. Helmericks

First Record of the Eastern Phoebe Breeding in Alaska: Extralimital by 2000 km
Bryce W. Robinson, Lucas H. DeCicco, Aaron Bowman, Scott Hauser, and John M. Wright

Book Review
Eugene Hunn

Featured Photo: Peregrine Falcons Attack a Ross’s Gull in Central Coastal California
Pete Sole

Front cover photo by © William Higgins of Springfield, Virginia: Apparently erythristic Short-tailed Hawk (Buteo brachyurus) at Tucson, Arizona, 20 December 2010, returning for a second winter. Since about 2006, the Short-tailed Hawk has become regular in southeastern Arizona, occurring mainly in the mountains, with 24 records endorsed by the Arizona Bird Committee through 2014.

Back cover “Featured Photos” by © Donna Pomeroy of El Granada, California (upper), and Pete Sole of Soquel, California (lower): Ross’s Gull (Rhodostethia rosea) near Pillar Point, San Mateo County, California 12–14 January 2017, representing the second record of the species for California. The Ross’s Gull was attacked by a pair of Peregrine Falcons (Falco peregrinus) hunting cooperatively and carried off.