I have been losing chicks in one particular pen and none of my other pens. The bodies I find are all stretched out on their side with the feathers removed from the top. No feathers in the pen. No blood anywhere. The body has been eaten from the picky area and most intestines are removed. Except for the last body no meat has been eaten. On that body 1/2 of the breast was eaten. Needless to say the chicks in that pen are a bit jumpy. Whatever is killing them is only coming around about once a week. The pen is 1 inch x 1 inch wire. Any suggestions as to what it might be and how I can keep it from killing any more?