The Wonder of birds / 
[prepared by National Geographic Book Service]. 
 - 1st ed. 
 - Washington, D.C. :  National Geographic Society,  c1983. 
 - 280 p. :  29 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 272. 
<br/><br/><label>ISBN: </label>0870444700 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Behavior.<br/>Birds--Conservation.
<br/><br/><label>Dewey Class. No.: </label>598  / w o