Just an fyi I lost a chick from a leg injury. The only thing in the pen that could have done the injury was one of those plastic feeders with the oval holes around it that the chicks eat from. He had to have gotten his little leg in there, under the plastic dividing those holes and fought to get loose. He was extremely sore for several days and limped for a long time. He never did do well, some days reverting to the very sore lameness, and died before he matured. I feel it was a loss that did not have to happen. From now on, little chicks here can walk in their dish of food all they want if it saves one life. Oh, another tip. With open water dishes, add marbles to the water to keep them from drowning. They will drink between the marbles. Water goes down fast this way so keep an eye on it.