Granivorous birds in ecosystems :  their evolution, populations, energetics, adaptations, impact and control / 
edited by Jan Pinowski , S. C. Kendeigh 
 - Cambridge :  Cambridge University Press,  1977 
 - 431 p. :  ill. ;  23 cm. 
 - International biological programme ;  12 .
<br/><br/><label>ISBN: </label>0521215048 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds--Ecology<br/>Granivores