I have recently bought a property with pond and 6 ducks. I believe three are Pekins and three are black and white, Muscovites? Anyway we built them a wood shelter for the winter and placed about 2 feet from the pond. I have a thick lay of straw on the floor. They refuse to go anywhere near the shelter. It is suppose to be below 0 in the upcoming week and severe wind chills. I am not sure how we can encourage them to shelter, I am afraid if we try to herd them in they will be frightened and wig out. Any ideas?