4000n 



3000- 



2000- 



(o 1000- 

 < 



Q 

 > 



O 



z 



o 



UJ 



o 



UJ 



a. 



50- 



100 



8O*RllW/SV»O0PINe (0) 



n 



GROUND AND BRUSH 

 FORAGING (3) 



SOARING/SWOOPING(0) 

 SALLYING (5) 



TREE FOLIAGE FORAGING (4) 



BARK/BOLE DRILLING (I) 



JAN FEB MAR 



APR 



T 1 1 r 



MAY JUN JUL AUG 



SEP 



OCT 



T r 



NOV DEC 



Figure 39. Monthly changes in representation of feeding guilds among 

 bird communities sampled by four roadside wildlife survey 

 routes, 1977. The numbers in parentheses correspond to the 

 third digit of the guild code and represent foraging strategy. 



158 



