Over the weekend I aquired a pair of 8 month old cornish cross birds. I about fell over when I went to lift them out of the crate! They weigh about 20 lbs each. My guess is they survived the inclination to overeat and die because the people turned them out to free range with no feed supplements at about 8 weeks of age. There is no question of their inability to breed the male is just too heavy and his leggs are too short. The female is laying a large brown egg a day. My question is this; how much do I feed them? I can't free range them because my Ameraucana roos for some reason want to kill this poor fat boy. They have to go into one of my breeding pens which have free choice feeders - which they have had their heads stuck in for the last three days. If I allow this to continue they will obviously over eat and die. Any diet for life advice?