Written and illustrated by David Allen Sibley, America's most widely respected bird illustrator and ornithologist, this FoldingGuide offers instant access to just what backyard birdwatchers need to know. 73 backyard birds are covered, including descriptions, size, range, seasonal occurrence, and illustrations, all taken from the award-winning The Sibley Guide to Birds, 2nd Edition,. The Desert Southwest region extends from Reno Nevada in the northwest, southward the Mohave Desert, eastward to eastern Texas and northeastward to the Colorado/New Mexico border. It includes portions of California, Nevada, New Mexico, Utah, and Texas.