1/ Ducks of the Gulf Coastal Region are assumed to produce 1.0 young for each adult in the breeding population.

8

Table 8

ALASKA PENINSULA-ALEUTIANS REGION

AVERAGE. ADJUSTED DUCK BREEDING POPULATION INDEXES (Computed from Air Survey Data) 1957-1970

1/ These are about 90% greater scaup.

2/ Ducks of the Bristol Bay Area are assumed to produce 0.8 young for each adult in the breeding population.

21

Oldsquaws are seen in this region as migrants and most do not nest here.

3/

The late-nesting scoters are not all present at time of surve".

4/

Ducks of Interior Alaskan habitats are assumed to produce one
young for every adult in the breeding population.

10

1/ Ducks in the Western Region are assumed to produce 0.8 young

per adult in the nesting population.