We've had our chicks for 3 weeks now. One is a roo as his comb is larger and has wattles and they are both very red. The rest all look like pullets so far. They were all supposed to be pullets, but they are sex links and my daughter picked out 3 lighter ones. So I was figuring I got 3 roos. But since only the one is showing rooster characteristics, are the others late bloomers or are they pullets? I'll put up some pics later today!