What does anseres mean?
The definition of anseres
An”se*res, n. pl.
Etym: [L., geese.] (Zoöl.)

A Linnæan order of aquatic birds swimming by means of webbed feet, as the duck, or of lobed feet, as the grebe. In this order were included the geese, ducks, auks, divers, gulls, petrels, etc.