The stiff-tailed ducks, the genus Oxyura, are part of the Oxyurini tribe of ducks. All have, as their name implies, long, stiff tail feathers, which are...

The ruddy duck (Oxyura jamaicensis) is one duck of six species within the stiff-tailed ducks (Oxyura). They occupy heavily vegetated habitats in North...

The white-headed duck (Oxyura leucocephala) is a small diving duck some 45 cm (18 in) long. The male has a white head with black crown, a blue bill, and...

Sumatra and Borneo. Nupserha oxyura var. postflavipes Breuning, 1950 Nupserha oxyura var. elongatoides Breuning, 1950 Nupserha oxyura var. oxyuroides Breuning...

The lake duck (Oxyura vittata) is a small, South American stiff-tailed duck. It is also called the Argentine blue-bill, Argentine blue-billed duck, Argentine...

The blue-billed duck (Oxyura australis) is a small Australian stiff-tailed duck, with both the male and female growing to a length of 40 cm (16 in). The...

The Maccoa duck (Oxyura maccoa) is a stiff-tailed diving duck found across Eastern and Southern Africa. As members of the stiff-tailed duck group, Maccoas...

wildlife trade. The Sumatran green pigeon was originally described as Columba oxyura by the Dutch zoologist Coenraad Jacob Temminck in 1823 based on specimens...

stiff-tailed ducks. It is sometimes included with the latter in the genus Oxyura, but the masked ducks are now considered the descendants of a missing link...

uncertain position and decidedly aberrant. Their anatomy is more similar to Oxyura than to the two less derived genera, but still unique in many respects....