Hey All, Wanted to show this with you. I have been raising Cornish Cross birds for the past five years and have never had this appear before in my flock. I know it's a throw back from something, what, I don't know exactly what. But, here's some pics. You can see the rust kinda coloring. It's not from anything in their pen, and it's only on this one cockerel, one out of 84. Fascinating.