She(?) is about 17 weeks old. No crowing, but no egg laying. I'm getting a bit worried with how big her comb is already, but it was small and pale until around 15 weeks and then it just got huge. She is definitely the lead hen, and lets my dog and the neighbors dog know if they've gotten too close for comfort. I bought her as a sexed chick from Tractor Supply when she was a few days old.