Cayuga ducks are black ducks with a green head. When the light hits them right, their iridescent colors show up. This one was sitting in the right light plus I lightened it up a bit so the colors can be seen more clearly. Often kept as ornamental ducks. This one was either dumped at the lake or escaped and found its way here. A truly beautiful bird.
Cayuga Duck (Anas platyrhynchos domesticus)