: a diving duck (such as a scoter, merganser, or eider) that frequents the sea
Examples of sea duck in a Sentence
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Coastal hunts obviously offer great sea duck hunting, but there’s also the opportunity to pursue what is perhaps the best wigeon hunting in the country, according to Haugen.—
Alex Robinson,
Outdoor Life,
6 Aug. 2025 Characterized by its large, stout bill and black-and-white plumage, the Labrador duck was a sea duck that primarily fed on mollusks, crustaceans and other marine invertebrates.—
Scott Travers,
Forbes.com,
13 Apr. 2025 Yes, there are tree ducks like black-bellied whistling ducks, and sea ducks like surf scoters.—
M.d. Johnson,
Field & Stream,
2 Nov. 2023 In 1999, about 110 king eiders, a type of large sea duck, were found dead on Baffin Island in Canada.—
Megan Marples,
CNN,
18 Feb. 2022 Unalaska Island reported 44 kinds of birds, including 623 black scoters, a large sea duck.—
Zaz Hollander,
Anchorage Daily News,
7 Jan. 2022