Q Diom&dea wulans 



100 



WING LENGTH and WING AREA 

 BIRDS 



Wing length is one -half the wing span 

 Wing area is for both wings 



EQUATION OF LINE 

 (length)' ' 1.93 (area) 



20 



100 



Wing Area - sq. centimeters 



1000 



Fig. 5 



10000 



