Oxyurini
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The Oxyurini are a tribe of the duck subfamily of birds, the Anatinae. It has been subject of considerable debate about its validity and circumscription. Some taxonomic authorities place the group in
Blue billed duck
Heteronetta atricapilla blackheadedduck
Nomonyx dominicus Pato enmascarado Masked Duck
White headed duck witkopeend Oxyura leucocephala
Black-headed duck
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The black-headed duck is a South American duck in subfamily Oxyurinae of family Anatidae. It is found in Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay.
Oxyurini
…One mid-sized genus and two or three which are monotypic are described today: The black-headed duck of Heteronetta is indisputably quite basal, looking more like a typical duck-like Anatidae with a short tail and normal bill. The masked duck of Nomonyx…
Male
Female
Presbyornis Enhancement