On Dec. 20, the local Audubon Society held its 70th annual Oakland bird count, with members spotting such uncommon species as the Snow Goose, Black-throated Gray Warbler, and Yellow-billed Loon. On Tuesday, the group will hold its annual San Francisco count and we'll get a live update from one of the organizers. One of the recent trends among avian enthusiasts is birding by ear, or trying to identify a bird by its song. An ambitious new book, "Bird Song Bible," seeks to assist birders in that endeavor -- and comes with its very own audio player. We check in with the editor of the new volume.
Les Beletsky, bird biologist and author of "Bird Songs Bible: The Complete, Illustrated Reference For North American Birds," "Bird Songs," and "Bird Songs from Around the World"
Dan Murphy, organizer of the San Francisco Christmas Bird Count at the Golden Gate Audubon Society