he of the golden Eye

Welcome  visitors, the Common Goldeneye (Bucephala clangula). These tree-hole nesting diving ducks spend their summers in Canada and Alaska and come to South Dakota waters only in the winter months. I always knew them as "Whistlers", which is what they are commonly called in the Lake Champlain valley where I grew up. Their wings whistle loudly when in flight, hence the colloquial name given this elegant little duck.