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They are members of the tribe Mergini and, in North America, include eiders, scoters, mergansers, goldeneyes, Bufflehead, Long-tailed Duck, and Harlequin Duck. Four populations of sea ducks are currently federally listed as threatened or endangered in the U.S. or Canada.\n
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\nThe Sea Duck Key Habitat Sites Atlas<\/a> describes 85 sites throughout North America that constitute important sea duck habitats. It is intended to heighten awareness of valuable sea duck habitats, aid in prioritizing habitat conservation and protection efforts, and help in evaluating environmental assessments. Criteria for inclusion in this atlas were strict, relative to criteria used for other bird habitat designations, to highlight those habitats most critical to sea ducks during at least one season. Key habitat site descriptions include a synopsis of sea duck abundance and temporal importance of the site to sea ducks, as well as sensitivities or potential conflicts that may impact sea ducks or their habitats.\n
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\nKey habitat sites for sea ducks along the U.S. Atlantic coast include:\n