JUNE 1965 





— 



^<. 



«r 



t 





9* 



« 



* .. « 



is 



'^ 



««„^_ 



O 



1 bird 

 5 birds 

 25 birds 

 100 birds 

 400 birds 

 1000 birds 



Figure 35. — Relative abundance of species or 

 species groups found in flocks, averaged over 

 15 months. 



105 



