The Pacific Diver breeds on Arctic lakes and moves to Pacific coastal waters for winter; it is an accomplished diver.
Breeding adults have a gray head and a striped neck.
Pacific Loons breed on lakes in northern Alaska. A study of lakes surveyed from 2011 to 2014 examined how five fish species and lake features related to loon occupancy and chick production. For Pacific Loons, lakes with Alaska blackfish were associated with greater occupancy and chick production.
The researchers suggest that small-bodied fish are important prey for loon chicks. Lakes that were unoccupied in one year were more likely to be occupied by Pacific Loons in a later year than by Yellow-billed Loons. Fish communities and lake use were linked to breeding patterns in the study area.
An extinction-risk assessment has not been added yet.
In northern Alaska, lakes with Alaska blackfish were associated with greater Pacific Loon occupancy and chick production. Small-bodied fish were identified as important potential prey for loon chicks.