A lot of yard chickens around here are some type of game chicken. These came to us as one day old little babies Easter weekend. A friend came home from work the night before and his dog had killed the mother. These 5 are the survivors. They must have been brand new, it took them almost 2 days to start eating. He had no interest in raising the babies and brought them to us. Out of the 5 there are two that are more black and three that are more brown. Could that be a sex link gene? The difference was apparent even on the first day. Any idea what breed these are?