If it is a rat snake it is not a threat to you or your full size chickens. Take a few deep breaths.
You can use fake eggs to discourage the snake. After swalloring a few fakes and having to regurgitate them it will either starve or start going after rodents instead.
You can use fake eggs to discourage the snake. After swalloring a few fakes and having to regurgitate them it will either starve or start going after rodents instead.