The ruddy duck (Oxyura jamaicensis) is a duck from North America and one of the stiff-tailed ducks. The genus name is derived from Ancient Greek oxus, "sharp", and oura, "tail", and jamaicensis is Jamaica. The Andean duck was considered a subspecies. In fact, some taxonomists, including the American Ornithological Society, still consider it conspecific. Subspecies: jamaicensis - North America including West Indies. andina - central Colombia. ferruginea - southern Colombia south to Chile.