If you have raccoons, you will want to secure your doors with carabiners or something. They can and will open doors. They will also reach through any opening more than 1/2" and grab birds and pull them out in pieces. I had a customer who kept his birds in a small pen happily for months, then returned all of his survivors to me after a raccoon found them.
Not all species of quail are cold hardy. Button quail are not, for example. Coturnix quail are.
Not all species of quail are cold hardy. Button quail are not, for example. Coturnix quail are.