White-headed duck Oxyura leucocephala possibly still breeds.    From Wordnik.com.  [Danube Delta Biosphere Reserve, Romania] Reference

Subfossil avian deposits from Poukawa, Hawkes Bay, and the firat record of Oxyura australis (Blue-billed duck) from New Zealand.    From Wordnik.com.  [Archive 2006-03-01] Reference

The Bosphorous region constitutes a major bottleneck for migratory birds, and Sarikum lake supports large numbers of wintering waterfowl and Oxyura leucocephala.    From Wordnik.com.  [Euxine-Colchic deciduous forests] Reference

Black hawk-eagle (Spizaetus tyrannus), masked duck (Oxyura dominica), king vulture (Sarcoramphus papa) and crane hawk (Geranospiza caerulescens) are all resident species that are considered rare according to the IUCN red list.    From Wordnik.com.  [Usumacinta mangroves] Reference

The hotspot hosts several globally threatened waterbird species, including the marbled duck (Marmaronetta angustirostris, VU), lesser white-fronted goose (Anser erythropus, VU) and the white-headed duck (Oxyura leucocephala, EN).    From Wordnik.com.  [Biological diversity in the Caucasus] Reference

A number of globally threatened bird species migrate through, nest or winter in this area, including the Dalmation pelican (Pelecanus crispus), pygmy cormorant (Phalacrocorax pygmaeus), white-headed duck (Oxyura leucocephala) and ferruginous duck (Aythya nyroca).    From Wordnik.com.  [Euxine-Colchic deciduous forests] Reference

High records for common pochard and greylag goose Anser anser (3,200: 18,000 in the 1970s) show that Ichkeul is their most important wintering site in northwest Africa. 600 (4% of known world population) of the threatened white-headed duck Oxyura leucocephala, were seen in 1977.    From Wordnik.com.  [Ichkeul National Park, Tunisia] Reference

Following my recent serendipitous discovery (thanks to the Dave Barry Blog) of a Web site describing and illustrating an amazing appurtenance of the male Lake Duck (Oxyura vittata)–a resident of southern South America–I began thinking about the ways in which ornithologists have incorporated the color, size, and shape of various anatomical features into common names.    From Wordnik.com.  [Archive 2003-05-01] Reference

But here's one duck that doesn't have to duck: Oxyura leucocephala.    From Wordnik.com.  [news.beiruter.com - A directory of Lebanese blogs] Reference

(Oxyura leucocephala) in Pakistan that comes here from Central Asia.    From Wordnik.com.  [Bloggers.Pakistan] Reference

Oxyura is divided into various species and subspecies throughout its range.    From Wordnik.com.  [remote central] Reference

The white-headed stiff-tail (Oxyura leucocephala) occupies the Western Mediterranean.    From Wordnik.com.  [remote central] Reference

The North American ruddy duck (Oxyura jamaicensis) has been introduced to Spain and within that country this introduced population probably also constituted an inbred population.    From Wordnik.com.  [remote central] Reference

Winter resident birds also include many species such as American white pelicans (Pelecanus erythrorhynchos), American bitterns (Botaurus lentiginosus), ring-necked ducks (Aythya collaris), northern shovelers (Anas clypeata), and ruddy ducks (Oxyura jamaicensis).    From Wordnik.com.  [Mexican South Pacific Coast mangroves] Reference

These wetlands are especially important for the conservation of such rare aquatic birds as gulls (Larus relictus, L. ichthyaetus), white-headed duck (Oxyura leucocephala), marbled teal (Anas angustirostris), flamingo (Phoenicopterus roseus), ferruginous duck (Aythya nyroca), sociable plover (Vanellus gregarius), white and Dalmatian pelicans (Pelecanus crispus, P. onocrotalus), and many others (112 species).    From Wordnik.com.  [Kazakh steppe] Reference

Other endangered or vulnerable birds that have been observed in mangroves of this ecoregion are the long-winged harrier (Circus buffoni), the dark-billed cuckoo (Coccizus melacoriphus), the boat-billed heron (Cochlearius cochlearius), the striped-backed bittern (Ixobrychus involucris), the masked duck (Oxyura dominica), the red-capped cardinal (Paroaria gularis migrogenis) and the osprey (Pandion haliaetus), a boreal winter visitor.    From Wordnik.com.  [Coastal Venezuelan mangroves] Reference

Duck, Ruddy Oxyura jamaicensis 94.    From Wordnik.com.  [The Field Guide to Wildlife Habitats of the Eastern United States] Reference

Oxyura jamaicensis) slowly swimming away from shore.    From Wordnik.com.  [xenogere] Reference

Oxyura australis, Gould.    From Wordnik.com.  [Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2] Reference

Oxyura jamaicensis.    From Wordnik.com. Reference

There are numerous rare nesting species, both on the lakes and in the forests of the ecoregion: Falco naumanni, Circus macrourus, Pelecanus crispus, Pelecanus onocrotalus, Cygnus cygnus, Oxyura leucocephala, Platalea leucorodia, Grus grus, Anthropoides virgo, Haliaeetus albicilla, Aquila shrysaetos, Aquila heliaca, Aquila rapax, Falco cherrug, Otis tarda, Otis tetrix, Chettusia gregaria, Syrrhaptes paradoxus, Bubo bubo, Larus ichthyaetus.    From Wordnik.com.  [Kazakh upland] Reference

Some examples are the graylag goose (Anser anser), white-fronted goose (Anser albifrons), Little bustard (Otis tetrax), glossy ibis (Plegadis falcinellus), Eurasian spoonbill (Platalea leucorodia), night heron (Nycticorax nycticorax), red-breasted goose (Branta ruficollis), peregrine falcon (Falco peregrinus), Pelecanidae, buff-backed heron (Bubulcus ibis = Ardeola ibis), squacco heron (Ardeola ralloides), greater flamingo (Phoenicopterus roseus), white-headed duck (Oxyura leucocephala), and Caspian snowcock (Tetraogallus caspius).    From Wordnik.com.  [Caspian Hyrcanian mixed forests] Reference

The following animals from this ecoregion included in the IUCN Red Data List: (1) Mammals: corsac fox (Vulpes corsac), saiga antelope (Saiga tatarica tatarica), giant mole-rat (Spalax giganteus), steppe pika (Ochotona pusilla), bobac marmot (Marmota bobac), ground squirrel (Spermophilus major), birch ouse (Sicista subtilis), migratory hamster (Cricetulus migratorius); and (2) Birds: white-headed duck (Oxyura leucocephala), imperial eagle (Aquila heliaca), lesser kestrel (Falco naumanni), pallid harrier (Circus macrourus), great bustard (Otis tarda), little bustard (Tetrax tetrax), black-winged pratincole (Glareola nordmanni) and sociable plover (Vanellus gregarius).    From Wordnik.com.  [Kazakh steppe] Reference