My ducks discovered our pond has started to fill again for the winter and promptly went for a swim. Two of my drakes are still pretty ratty looking from molting and came out of the pond looking pretty wet. It was in the low 30's last night and starting to get dark now. I am worried about them being wet and getting cold. There is now heat in duck house and one side has an open window area. Should I make other arrangements for them for the night???