eWestern Birds

The Quarterly Journal of Western Field Ornithologists

Vol. 49, No. 1
March 2018
Western Field Ornithologists

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First Report of the Hawaii Bird Records Committee
Eric A. VanderWerf, Reginald E. David, Peter Donaldson, Richard May, H. Douglas Pratt, Peter Pyle, and Lance Tanino

The 41st Annual Report of the California Bird Records Committee: 2015 Records
Adam J. Searcy, Brian E. Daniels, Jonathan S. Feenstra, James R. Tietz, and Thomas A. Benson

Mitochondrial DNA Suggests Recent Origins of Subspecies of the Sharp-shinned Hawk and Great Blue Heron Endemic to Coastal British Columbia and Southeast Alaska
Rebecca G. Cheek, Kyle K. Campbell, Kevin Winker, Robert W. Dickerman, and Berry Wijdeven

Molt Sequences in an Extralimital Great Gray Owl Detected over Two Winters in Northwestern California
Rodney B. Siegel, Peter Pyle, and Helen L. Loffland


Northernmost Record of the Wedge-rumped Storm-Petrel (Oceanodroma tethys)
Deven Kammerichs-Berke

First Record of a Tahiti Petrel (Pterodroma rostrata) from Hawaiian Waters
Marie P. Morin, André F. Raine, Emily Haber, and Robert Z. Torres

Extension of the Breeding Range of the Black Rosy-Finch in Wyoming
Carl W. Brown, Susan Patla, and Richard E. Johnson

The Effect of a Total Eclipse of the Sun on Bird Calls
Anthony Mendoza

Book Review
Blake A. Grisham

Thank You to Our Supporters

Featured Photo: Two Examples of Apparent Avian Keratin Disorder from California
Kristie Nelson

Front cover photo by © Phoo Chan of Fremont, California: Great Gray Owl (Strix nebulosa) at Prairie Creek Redwoods State Park, Humboldt County, California, 6 February 2016. The many high-resolution photos taken in two successive years confirmed the bird returned the following winter to a site 50 km farther south and provide evidence that the Great Gray Owl’s molt is among the slowest of any North American bird’s, some feathers being retained for several years.

Back cover “Featured Photos” by © Malcolm Clark of Mammoth Lakes, California: White-headed Woodpecker (Picoides albolarvatus) at Mammoth Lakes, Mono County, California, 20 September and 12 October 2015. The mandibles have grown rapidly far beyond their normal length, as seen in birds afflicted with avian keratin disorder, now frequent among some species in Alaska.