eWestern Birds
The Quarterly Journal of Western Field OrnithologistsVol. 42, No. 1
March 2011
Western Field Ornithologists

Contents
MAIN ARTICLES
Elevation Ranges of Birds on the Sierra Nevada’s West Slope
Rodney B. Siegel, Robert L. Wilkerson, James F. Saracco, and Zachary L. Steel
An Outpost for Desert Birds on the Coastal Slope of Southern California
Kenneth L. Weaver
NOTES
First Record of the Bridled Morph of the Common Murre in the Pacific
Annie E. Schmidt and Pete Warzybok
Merlin Chases Passerines Flushed by Northern Harrier
Scott McConnell
Book Reviews
David Vander Pluym and Lori Hargrove
Featured Photo: Hybrid Townsend’s x Yellow-rumped Warblers from Oregon and Arizona
Alan Contreras
Front cover photo by © Martijn Verdoes/www.agami.nl of Menlo Park, California: Great-winged Petrel (Pterodroma macroptera), Monterey Bay, Santa Cruz County, California, 18 September 2010, representing the third North American record of this Southern Hemisphere species.
Back cover “Featured Photos” by © Dwight Porter of Portland, Oregon: apparent hybrid Townsend’s x Audubon’s Yellow-rumped Warbler (Dendroica townsendi x D. coronata auduboni), Malheur National Wildlife Refuge, Harney County, Oregon, 6 June 2010.