Hello all! Winter is coming and as of now, our coop door is attached to our run so our 6 chickens can come and go from their coop into their run everyday. With winter coming, and cold weather, i need to consider a door for the coop. I would ideally prefer an automatic door that will open every morning for them. I am here to ask for advice on a good brand or design. I have read stories of chickens getting smooshed! I would also prefer a battery operated door that will open on a timer daily for the winter. Thanks in advance!