The Encyclopedia of birds / 
Edited by Christopher M. Perrins and Alex L.A. Middleton 
 - Oxford, England :  Equinox,  1985 
 - xv, 445 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>717285243 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Encyclopedias