Greylag goose (Ngỗng xám, Anser anser) is a species of large goose in the waterfowl family Anatidae and the type species of the genus Anser.
Greylag goose (Ngỗng xám, Anser anser) is a species of large goose in the waterfowl family Anatidae and the type species of the genus Anser.