Aythya

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Aythya

Bird

Artículo WikipediaFuente Dbpedia

Aythya is a genus of diving ducks. It has twelve described species. The name Aythya comes from the Ancient Greek word aithuia, which may have referred to a sea-dwelling duck or an auklet.Aythya shihuibas was described from the Late Miocene of China. An undescribed prehistoric species is known only from Early Pleistocene fossil remains found at Dursunlu, Turkey; it might however be referrable to a paleosubspecies of an extant species considering its age (see also Greater Scaup).The Miocene "Aythya" arvernensis is now placed in Mionetta, while "Aythya" chauvirae seems to contain the remains of two species, at least one of which does not seem to be a diving duck.Genus: Aythya Species: 12 o Canvasback A. valisineria, Least Concerno Common Pochard A. ferina, Least Concerno Redhead A. Americana, Least Concerno Ring-necked Duck A. collaris, Least Concern o Hardhead A. australis, Least Concerno Baer's Pochard A. baeri, Critically Endangered o Ferruginous Duck A. nyroca, Near Threatened o Madagascar Pochard A. innotata, Critically Endangered o New Zealand Scaup A. novaeseelandiae, Least Concerno Tufted Duck A. fuligula, Least Concerno Greater Scaup A. marila, Least Concerno Lesser Scaup A. affinis, Least Concern