Winter Survey - Continued 
Tr 
Aerial Coverage 
Number Observers Number Hours Miles Miles 
Location U. 5S. State Other ‘Total Planes Flown Flown Driven 
Alaska 4 - ~ 4 iL 12 ~=—s 1, 400 - 
Canada -: ? 2 2 2 2 2 2 
Mexico rn ik ~ 5 2 106 13,780 2 

GRAND TOTAL 180/ 11,2114 38/ 1,865f 1537 1,080/ 98,219/ 102,458 

