What is "magpie-goose"

alt. ''Anseranas semipalmata,'' the only non-extinct bird of the family Anseranatidae, resident breeder in northern Australia and southern New Guinea, having black and white plumage and yellowish legs. n. ''Anseranas semipalmata,'' the only non-extinct bird of the family Anseranatidae, resident breeder in northern Australia and southern New Guinea, having black and white plumage and yellowish legs.