Swan goose

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Related to Swan goose: greylag goose
(Zool.) a bird of India (Cygnopsis cygnoides) resembling both the swan and the goose.

See also: Swan

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
In this study, Mandarin Ducks spent a similar proportion of their time foraging as the Ferruginous Pochard Aythya nyroca (Muzaffar, 2004), and less than that of the Tundra Bean Goose Anser fabalis (64%) (Liu, 2011), Swan Goose Anser cygnoides (60.2%) (Zhang, 2009), and Tundra Swan (30.52%) (Shao et al., 2018).
It is a habitat for endangered migratory birds, including the red-crowned crane, hooded crane and swan goose.
Though the breed's history is not clearly documented, it's thought the African goose is a relative of the Chinese goose, both having descended from the wild swan goose of Asia.