Lake duck / Argentinische Ruderente (Oxyura vittata)

Classification: Genus Oxyura; Subfamily Dabbling ducks plus extinct (Anatinae); Family Waterfowl (Anatidae)
General: The lake duck (Oxyura vittata) is a small, South American stiff-tailed duck. It is also called the Argentine blue-bill, Argentine blue-billed duck,^[2] Argentine lake duck, or Argentine ruddy duck. [more]

First documented observation : 2019-02-17 in Patagonia.