Awww, cute picture! Maine winters are pretty challenging so I expect they'll be happy staying in and dry. So the fence is permenant in your situation. Probably easier to leave it up then take it down and store it? Hmmmm....whole new world this chicken business...they are wonderful little creatures but clearly they are on everyone's menu...except mine, lol.
Well, if you wanted to, the fence is easily taken down, and put away for the winter. The big thing is, from what I've read from Premier,is to NOT roll the fence up around the posts. That makes for a tangled mess. Another thing if you are putting away, is to make sure mice can't get to it. Seems they like to chew/eat the de-energized fence. It is, to me, much easier to leave it up.