y l-15 August 
= 16-31 August 
0~ 0 birds 
@= 1-10 " 
0 = 11-25 " 
O =26-50 " 
0=51-100 " 
SOOTY TERN (Sterna fuscata) 
At-Sea Distribution and Abundance 
^=101-500" AUGUST 
