PACIFIC FLYWAY 
Production Data 
The ground study crews at Selawik and Northway report a 
good hatch and large brood size among the early nesting species. 
Average brood size this year 6.9 young compared with 6.6 young in 
1956 and brood density slightly better than in 1956. As of July 20, few 
scaup broods had appeared, but the breeding population as derived from 
ground studies at Selawik showed a considerable increase in scaup and 
prospects for a good scaup hatch appear favorable. 
In view of no change in size of the breeding population, 
favorable production prospects, but some loss due to extensive fires, 
it is estimated that the 1957 fall flight from Alaska will be about the 
same as in 1956. 
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