Hansen's Field Guide to the Birds of the Sierra Nevada

Identify and learn about over two hundred and fifty birds of the Sierra Nevada. From tiniest hummingbirds to condors with nine—foot wingspans; from lower—elevation wrens to the rasping nutcrackers of the High Sierra; from urban House Sparrows to wild water–loving American Dippers, Hansen’s Field Guide to the Birds of the Sierra Nevada showcases artist—naturalist Keith Hansen’s sixteen—year project to illustra...