Oxyurinae

From Academic Kids

Stiff-tailed ducks
White-headed Duck
White-headed Duck (Oxyura leucocephala)
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Anseriformes
Family:Anatidae
Subfamily:Oxyurinae
Genera

Oxyura
Biziura
Heteronetta

Oxyurinae is a sub-family of the duck, goose and swan family of birds, Anatidae. Most of its members are stiff-tailed ducks, which have, as their name implies, long stiff tail feathers, which are erected when the bird is at rest. Most have relatively large swollen bills. The exception is the Black-headed Duck which looks more like a typical duck with a short tail and normal bill.

These are all freshwater diving ducks. Their legs are set far back, making them awkward on land, so they rarely leave the water.

Their unusual displays involve drumming noises from inflatable throat-sacs, head throwing, and erecting short crests. Most display singly, but Musk Ducks "lek" in groups.da:SkarveŠnder fr:Oxyurinae

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