I've had an eagle come and visit almost every day and we've managed to scare it off before it has done any serious damage to our flock (we have three hens that are missing half their feathers and a few strips of flesh). I refuse to let them free range now, but what can I do to cover our super large yard? It is about 50 feet by 50 feet. And do you think the eagle will not stop hunting until it eats every single one of my 42 chickens?