Okay, first of all, I thought I had purchased all pekins, but three of them are, apparently, fawn and white runners. Here's the real problem, though. One of the runners keeps tripping over himself, can't seem to pick himself up for a few moments, and then will get up and run with the others. I thought may be a leg was injured, but I can't see anything except that the back toe is missing on his left foot--he came that way, though, so I don't think that's the problem. What does it mean? Is there something I can check for or do? Please help; anything is appreciated.