Waving Hi to Ducks R Us! What part of NoDak are you in? I'm in the Minot area... In our area, we are supposed to get up to 7 tomorrow which is good since I need to run the hose out to fill the horses water, probably will fire up the grill now that DH was kind enough to dig it out of the snow for me.
Yes, ducks do fine in the cold. The part you need to watch is the fact that they are living on the pond. Keep an eye on them, ducks like to dive and if they come up under the ice they can drown. I can't tell how thick that ice is, is it thin enough for them to break through if they get under it? Nice looking set-up!