Data available for comparison are irregular, and no wide- 
spread certain changes in brood size can be identified. At Minto, 
however, a definite reduction in brood size was noted, and indica- 
tions of a general reduction in size were reported from Ft. Yukon. 
At Minto, the reduction in brood size will be more than offset by 
the increased number of broods, but at Ft. Yukon a lowered final 
production may be the result. 
Conclusions - 
In at least one area (Minto), a healthy increase in fall 
flight is anticipated. The concensus of opinion is that from other 
areas, the fall flight will not change appreciably from the 1953 level. 
14 
