I'm not sure now, because the bill doesn't look orange.
Common Merganser (Mergus merganser)
Spotted while on wilderness patrol.
The Common Merganser (Mergus merganser), also known as a the gulaund or goosander, is a large-sized duck, which is distributed over Europe, North Asia and North America. It is most common on lakes and rivers. Its nests can be found in treeholes.