The Falkland steamer duck (Tachyeres brachypterus) is a species of flightless duck found on the Falkland Islands in the South Atlantic Ocean. The steamer ducks get their name from their unconventional swimming behaviour in which they flap their wings and feet on the water in a motion reminiscent of an old paddle steamer. The Falkland steamer duck is one of only two bird species endemic to the Falkland Islands, the other being Cobb's wren.
The Falkland steamer duck is part of the order Anseriformes and the family Anatidae, alongside ducks, geese, and swans. It is in the genus Tachyeres with the three other species of steamer ducks, all found in South America. The Falkland steamer duck is most closely related to the flying steamer duck, which can also be found in and around the Falkland Islands. It is believed that they might still be able to interbreed. A study from 2012 established that these two species are genetically indistinguishable. However, they tend to reproduce in different geographic areas. Possible hybridization could account for the genetic similarities between the two species. Some scientists have proposed that the flying steamer duck and...