I have an 18 week old Americana. At what age is it determined if he is male or female? By his personality, we thought for sure he was a rooster, but he's not crowing, no spurs, no fancy tail. He is the alpha, the leader, challenges all of the others, the most friendly, but is HE A HE???? At what age would he crow? None of the other females are clucking yet. When do spurs appear? Is Joselito - JOSELITA??? Been spending hours online trying to find pics of Americana Ro's and Hens, but no answers. Thanks for your time!