Looking for some duck advise......I live on a small lake in Michigan. There are 6 domestic ducks that were bought as ducklings as pets this past spring. They have roamed the lake all summer. The people who bought them moved away. They usually hang out in some reeds at the edge of the lake a few houses down from mine. I am concerned because the lake will be freezing soon and it will get very cold! I dont know a damn thing about ducks, but am wondering if I should at least put up a shelter for them? They have never been cooped......I'm not sure what to do! Any advise please??