Buff Orpington approx 25 wks old. I've really started to notice the difference in feathering on her/his head and neck in the last couple weeks. All my other BO now have red combs and are laying. This one has always been bigger than the others. She grew a lot faster. However her comb and wattles aren't red yet. Would it be because it's a roo or is something wrong with her? I recieved all 10 BO from a hatchery at the same time. If that makes a difference in age and/or growth.