Aythya тұқымдас су құстары

Genus of birds

Aythya is a genus of diving ducks. It has twelve described species. The name Aythya comes from the Ancient Greek word αυθυια , which may have referred to a sea dwelling duck or an auklet. Aythya shihuibas was described from the Late Miocene of China. Zelenkov (2016) transferred the species Anas denesi Kessler (2013), known from the late Miocene of Hungary, to the genus Aythya. 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. The genus Aythya was introduced in 1822 by the German zoologist Friedrich Boie. The type species is the greater scaup.

The genus contains 12 species. Male Female Scientific name Common name Distribution Conservation status A. valisineria Canvasback North America least concern A. ferina Common pochard Northern Europe into Asia vulnerable A. americana Redhead North America, from as far north as Northern Canada to the lower United States least concern A. collaris Ring necked duck Northern United States and Canada least concern A. australis Hardhead Australia, New Guinea, New Zealand, and the islands of the Pacific least concern A. baeri Baer's pochard Southeast Russia and northeast China, migrating in winter to southern China, Vietnam, Japan, and India critically endangered A. nyroca Ferruginous duck From Iberia and the Maghreb east to western Mongolia, south to Arabia near threatened A. innotata Madagascar pochard Madagascar critically endangered A. novaeseelandiae New Zealand scaup New Zealand least concern A. fuligula Tufted duck Throughout temperate and northern Eurasia; occasional visitor to the United States and Canada least concern A. marila Greater scaup Alaska, northern Canada, Siberia, and the northernmost reaches of Europe least concern A. affinis Lesser scaup Alaska through western Canada to western Montana, Central America least concern

Based on the Taxonomy in Flux from John Boyd's website.