□ 1-15 October 
0= 16-31 October 
O = 0 birds 
0« i_io t» 
O =11-25 " 
O =26-50 " 
O =51-100 11 
=101-500" 
Q =500 
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( Oceanodroma Leucorhoa + 0. castro ) 
At-Sea Distribution and Abundance 
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