Birds as monitors of environmental change / 
edited by R. W. Furness and J. J. D. Greenwood 
 - London :  Chapman & Hall,  1993 
 - 356 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0412402300 
<br/><br/><label>LCCN: </label>93-008754 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Ecology<br/>Environmental indicators<br/>Indicators (Biology)