I have 10 ducks, pekins, rouens, and cayugas. They have been living on the pond all summer, and will probably stay there for the winter as well. I was wondering what kind of shelter they will need for the winter? This summer, they layed in the shade of the trees around the pond, and didn't care if it was raining. I am just worried that they will get too cold this winter. They are all at least 5-6 months old, and look full grown. Also, will they be all right swimming when it is cold out? It seems like they are always in the water when it is colder in the mornings now.