species 263 observations

Least Auklet

Aethia pusilla

Field notes

The least auklet (Aethia pusilla) is a seabird and the smallest species of auk. It is the most abundant seabird in North America, and one of the most abundant in the world, with a population of around nine million birds. They breed on the islands of Alaska and Siberia, and spend the winter close to the edge of the ice sheet. Their largest colonies are on the Aleutian Islands, St. Lawrence Island and Little Diomede Island.

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Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided