' □ 1-15 I'-ay 
O = 16-31 I-fey 
O = 0 birds 
® = 1-10 " 
O =11-25 " 
O =26-50 " 
O = 51-100 " 
= 101 - 500 " 
= 500 + » 
SI -MNH-38 (8-65) 
O 
o 
o 
o 
o 
o 
o 
© 
