The pyrenese is a smart idea......I have raised gamefowl for yeaaaaaars....anyone familar with good gamefowl knows two things.....one they are expensive and two people love to steal them. An old timer who taught me alot about gamefowl came to my place one day to look at the pens id set up. He saw them and burst out laughing I asked him what he was laughing at he said the locks. I told him well I just don't want people stealing my birds. He walked up to one of my brood pens grabbed the wire and yanked four of the SCREWS AND WAShers id put the wire on with popped off and landed on the ground he reached in and grabbed my favorite broodcock looked at me and asked u still feel safe. He made a very valid point locks only keep honest people honest and if u have anytype of wire on your pens it can be ripped off or cut. As for predators I can understand that but just remember coons are smart as are many types of critters when they can break the locck the will still look for a week spot so make sure your whole pen is as strong as the lock.