What is "magpie goose"

The magpie goose (Anseranas semipalmata) is a waterbird species found in coastal northern Australia and savannah in southern New Guinea. It is a unique member of the order Anseriformes, and arranged in a family and genus distinct from all other living waterfowl. The magpie goose is a resident breeder in northern Australia and in southern New Guinea. The species was once also widespread in southern Australia, but disappeared from there largely due to the drainage of the wetlands where the birds once bred.