Roo maybe??? I have one chick that is developing its comb and wattles and the rest haven't really started. I had one from my first batch where I thought one was because it was devekoping faster than the rest until she layed an egg. She was 17 weeks. Here is a picture of the one in question. They all are susposed to be pullets. So far every order has been pullets. Here is a picture of a couple of the other chicks. Both have combs like the one on the right.