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The steamer ducks are a genus (Tachyeres) of ducks in the family Anatidae. All of the four species occur at the southern cone of South America in Chile and Argentina, and all except the flying steamer duck are flightless ; even this one species capable of flight rarely takes to the air.
The Fuegian steamer duck (Tachyeres pteneres) or the Magellanic flightless steamer duck, is a flightless duck native to South America. It belongs to the steamer duck genus Tachyeres . It inhabits the rocky coasts and coastal islands from southern Chile and Chiloé to Tierra del Fuego , switching to the adjacent sheltered bays and lakes further ...
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. [ 3 ]
The Chubut steamer duck or white-headed flightless steamer duck (Tachyeres leucocephalus) is a flightless duck endemic to Argentina. [ 1 ] [ 2 ] It is the most recently recognized species of steamer duck , being described only in 1981.
The three flightless species are monophyletic, with the flying steamer ducks splitting off phylogenetically. [3] It is the only steamer duck which can fly, and the only one to occur on inland fresh waters. [3] However, some individual male flying steamer ducks within the species are incapable of flight due to excessive size and wing loadings. [3]
Of the 2530 endemic species, 238 are found only in Brazil and 337 are only in one of 12 other countries and territories. Seventeen of the 3485 total species have been introduced to South America. In addition, 106 of the species are vagrants to the continent, with only a few records, and some have made only a single appearance.
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. Extinct order of birds This article is about the extinct New Zealand birds known as moa. For other uses, see Moa (disambiguation). Moa Temporal range: Miocene – Holocene, 17–0.0006 Ma Pre๊ ๊ O S D C P T J K Pg N North Island giant moa skeleton Scientific classification Domain ...
Palaeognathae contains five extant orders consisting of four flightless lineages (plus two that are extinct), termed ratites, and one flying lineage, the Neotropic tinamous. [ 1 ] [ 2 ] There are 47 species of tinamous, five of kiwis ( Apteryx ), three of cassowaries ( Casuarius ), one of emus ( Dromaius ) (another became extinct in historic ...