The lake duck is a small, South American stiff-tailed duck. It is also called the Argentine blue-bill, Argentine blue-billed duck, Argentine lake duck, or Argentine ruddy duck.
Scientific name: Oxyura vittata
The ruddy duck is a duck from North America and one of the stiff-tailed ducks. The genus name is derived from Ancient Greek oxus, "sharp", and oura, "tail", and jamaicensis is "from Jamaica". The Andean duck was considered a subspecies.
Scientific name: Oxyura jamaicensis
Mass: 310 – 800 g
Length: 35 – 43 cm
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