Sibley, David Allen <br/><br/>
The Sibley guide to bird life and behavior 

 - New York, NY  Knopf  2001 
 - 587 p. 
<br/><br/> D., 10/04 
<br/><br/><label>ISBN: </label>0-679-45123-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--North America<br/>Birds--Behavior--North America<br/>Birds<br/>Birds--Behavior