I bought 21 "Cornish Roasters" from McMurray and received them about 4 weeks ago. After about the second day, I could already tell that one of them was not developing as fast. He was more withdrawn, didn't move around as much, and as time went on, it became more and more obvious that he was not like the others. Today, at about 4 weeks old, he is about the same size as our non-meat pullets, which makes him perhaps 1/3 of the size of the other meat birds. But other than his size, he seems fine now. He walks around ok and eats and drinks like the rest. Is it normal to occasionally have a "runt"? Or do you think he probably had (or has) some other problem? I guess I'm mostly just curious. I haven't seen any external signs of disease.