Parent: Anatidae (Ducks)

└─ Tachyeres

└─── Tachyeres brachypterus (Falkland steamer duck)

└─── Tachyeres leucocephalus (Chubut steamer duck)

└─── Tachyeres patachonicus (Flying steamer duck)

└─── Tachyeres pteneres (Fuegian steamer duck)