I just killed a snake who was trying to swallow one of my biddies. He had gotten the head down his throat and I lost it. I chopped his head off. Of course the biddie was already dead and that made me mad. Since I live way out in the country I need to find out what to put around the outside of my chicken pen to keep them out. It is very open and they are able to walk around in the yard sorta like free roaming chickens do. Is there anything I can use for at night to keep these snakes away? I had saw something called snake away but didn't know if it actually works or not. Thanks to all who reply.