Hello, I am thinking about getting some geese next year. This fall I am fencing in my 3 acres which includes a lg. pond. I was wondering about housing for geese. right now I have a gander (the hen died) and I don't have any housing for him. when it snows he just goes under the trees and hangs out...is this necessary for housing for them if I don't plan on stopping them up at night anyways...they will be free ranged.