My chickens have just decided that every morning, when they are let out into the run, they are going to escape. They go over the top, snack on some bugs and then they go back into their run. I'm not sure why they have decided to start doing this. Are they missing something in their diet and feel they need to go find it? They have a five foot fence around the yard where they roam. I am home and only let them free-range when I can supervise. I know I can cover their run and keep them from escaping. I am just wondering if they will eventually get too heavy to do this or stop on their own? Maybe they will get more comfortable and not only cross the boundary of their run but also start crossing the fenced boundary of the yard. We have one acre for them. If I am not home, they are in their coop and it is locked up and as predator-proof as I feel necessary. They don't get really excited or out of hand. Actually, they are pretty calm about the whole situation. They go about their business as if they are on a mission. One hen in particular seems to be the ring-leader. She is a Buff Orpington and is always everywhere she needs not to be.