
Migration Route and Stopover Sites
King eiders are circumpolar, meaning they nest along the Arctic Circle. They spend time on most of the Arctic Islands and in parts of Alaska. During the winter, they migrate south to the Atlantic or Pacific Oceans where they range as far south as the United States, never venturing much further south than southern Alaska or Massachusetts.
Bird Size
16 inches
Threats
The king eider is threatened by habitat loss due to oil and gas development. It is also affected by water pollution and subsistence farming.
Interesting Facts
King eiders remain the same colors year-round. There is no difference between their winter and breeding plumages. While they are sea ducks, they have a few habits that are different from their close relatives. King eiders do not breed in colonies or on ocean islands; rather, breeding pairs move inland, sometimes quite a distance from the ocean, where they build a nest and incubate the eggs.
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