Common Eider (American)
Common Eider (American)
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The American Eider (Somateria mollissima dresseri) is a distinct subspecies of the Common Eider, inhabiting the Atlantic coast of North America. Like other eiders, it is a large sea duck known for its resilience in cold marine environments.
Where to spot
Atlantic coast of North America, from Labrador south to Maine and occasionally further south in winter.
How to spot
Look for them in coastal marine habitats, including rocky shores, bays, and estuaries. Males have a distinctive lobe at the base of the bill, slightly different from European Common Eiders. Females are brown and mottled, requiring careful study of bill shape.
When to spot
Year-round in their coastal habitat. Breeding takes place in spring and early summer; large coastal flocks are common in winter, especially in bays and estuaries.
Where to spot
Atlantic coast of North America, from Labrador south to Maine and occasionally further south in winter.
How to spot
Look for them in coastal marine habitats, including rocky shores, bays, and estuaries. Males have a distinctive lobe at the base of the bill, slightly different from European Common Eiders. Females are brown and mottled, requiring careful study of bill shape.
When to spot
Year-round in their coastal habitat. Breeding takes place in spring and early summer; large coastal flocks are common in winter, especially in bays and estuaries.
American Eiders frequently nest in colonies, sometimes in very dense aggregations, particularly on offshore islands, providing collective protection against predators.
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