Hello, I have 4 lovely chickens. They have a very large area outside of their pen. I installed a 6ft 6 fence to keep them in this area so that they could be free to roam outside during the day. As soon as I let them out in the morning they fly right over the fence, and now the fence is basically useless. I really don’t want to keep them In the pen all day. Does anyone have any ideas how I can keep my extremely naughty birds I’m their area.