This fellow, which looks like a young mallard, has at least one leg to stand on. (The other one is there; he’s just being lazy, I guess.)
Another duck standing on one leg; she was sleeping until I came through. I was busy looking at the green stain on her head feathers, when she opened her eye but did not otherwise move at all.
These two shared a rock for as long as I hung around. One or there other was cleaning themselves the entire time. The thick, warm, under-feathers of ducks are impressively soft looking. No wonder they can handle cold water.
And these two on a duck-poop-stained log, taking an afternoon nap.