Udvardy, Miklos D. F. <br/><br/>
National Audubon Society field guide to North American birds, Western region / 
 Field guide to North American birds, Western region 
[by] Miklos D.F. Udvardy ; revised by John Farrand, Jr. ; visual key by Amanda Wilson and Lori Hogan. 
 - Rev. ed. 
 - New York :  Knopf,  1994. 
 - 822 p. :  col. ill. ;  20 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0679428518 
<br/><br/><label>LCCN: </label>94007415  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Identification.--North America<br/>Birds--Identification.--West (U.S.)
<br/><br/><label>Dewey Class. No.: </label>598.297