I'm in Ontario, Canada. Live between Guelph and Orangeville if you're familiar with the area. It was getting down to -33 C (with the windchill) this winter (that's -27 F for all you American folk

) and we had long snaps of that throughout the winter. They lived in the Oshawa area and the Drake did sustain frostbite on his bill knob. It's been black from frostbite for a couple of months; but, it's no bother to him.
So lucky you've never had to deal with Bumblefoot! I hope to never have to deal with it again; since, their living conditions are now much better. They were looked after before I got them; but, a couple things could have used improvement.
I will try adding the "hole in the lid" to the tote. That sounds like a good idea, thanks for the advice. I now really only have one "problem child" now as I tried something that I thought would work. I took videos of them on my phone and then played them back to them while they soaked. The Drake immediately recognized his girls and would bob his head, huff at them, and nibble my fingers when he saw and heard them. I played videos of other female Muscovies (over the past 3 days) and while he was interested in watching them, he didn't seem to want to communicate. Everytime I play the video of either of his girls, he does the head bob, huffing, crest raising, and finger nibbling. No joke, he recognizes them! It's very adorable.
My "problem child" discovered 3 days ago that she could fly out of the tote. My fault, I wasn't keeping my eyes on her and now she has filed that in the memory bank. Just a few minutes ago she dumped over the entire bowl of Tricide Neo that I had her soaking in, inside the tote. Argh. I'm going to definitely try the hole in the lid or even putting her in a more contained and much higher walled tote.
Where are you located? If you're in this area then I see no reason why I can't let them bathe throughout the winter.