Perrins, Christopher M. <br/><br/>
Avian ecology / 
C. M. Perrins, T. R. Birkhead 
 - Glasgow :  Blackie,  1983 
 - 221 pages :  illustrations ;  21 cm. 
 - Tertiary level biology .
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0216914787 0216914779 ( pbk ) 
<br/><br/><label>LCCN: </label>83-007875 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Ecology