Steamer duck

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(Zool.) a sea duck (Tachyeres cinereus), native of Patagonia and Terra del Fuego, which swims and dives with great agility, but which, when full grown, is incapable of flight, owing to its very small wings. Called also loggerhead, race horse, and side-wheel duck.

See also: Steamer

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Kleptoparasitism of Magellanic flightless steamer-ducks (Tachyeres pteneres) by Kelp Gulls (Larus dominicanus) Boletin SAO 17:141-144.
Nest predators of flightless steamer-ducks (Tachyerespteneres) and flying steamer-ducks (Tachyeres patachonicus).
Nest predators of Flightless Steamer-Ducks (Tachyeres pteneres) and Flying Steamer-Ducks (Tachyeres patachonicus).