01327cam a2200301 4500 62118760 TxAuBib 20010803120000.0 010803s1990||||||||||||||||||||||||eng|u 89031517 9780395514245 pbk. 039551424X pbk. DLC DLC DLC TxAuBib Peterson, Roger Tory, 1908- A field guide to western birds : a completely new guide to field marks of all species found in North America west of the 100th meridian and north of Mexico / text and illustrations by Roger Tory Peterson ; maps by Virginia Marie Peterson. 3rd ed., completely rev. and enl. Boston : Houghton Mifflin, 1990. 432 p. : col. ill. ; 20 cm. "Sponsored by the National Audubon Society, the National Wildlife Federation, and the Roger Tory Peterson Institute.". Includes bibliographical references (p. 416) and index. 20010803. Birds West (U.S.) Identification. Birds Canada, Western Identification. Peterson, Virginia Marie, 1925- National Audubon Society. National Wildlife Federation. Roger Tory Peterson Institute.