Tuesday, May 22, 2012

>>Genus Speculanas (Bronze-winged Duck)

Bronze-winged Duck


Bronze-winged Duck
Conservation status
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Anseriformes
Family:Anatidae
Subfamily:Anatinae
Genus:Speculanas
von Boetticher, 1929
Species:S. specularis
Binomial name
Speculanas specularis
(King, 1828)
Synonyms
Anas specularis
The Bronze-winged Duck (Speculanas specularis) also known as the Spectacled Duck, is adabbling duck and the sole member of its genus Speculanas. It is often placed in Anas with most other dabbling ducks, but its closest relative is either the Crested Duck or the Brazilian Duck, which likewise form monotypic genera. Together they belong to a South American lineage which diverged early from the other dabbling ducks (Johnson & Sorenson, 1999) and may include the steamer ducks.
Named after the "bronze" speculum this species is also known as "pato perro" or "dog-duck" after the harsh barking call of the female.
The Bronze-winged Duck lives among forested rivers and fast-flowing streams on the lower slopes of the South American Andes, in central and southern Chile and adjacent parts of Argentina.
The sexes are alike.

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