I have a few years of chicken raising under my belt, and a few hundred chickens over those years. I feel I need to tell you this because what comes next is kind of odd to me. Never seen this before, and I need you to understand I know what I'm talking about. I have a transgendered chicken. I'm using gender in the sociological term as in social role as opposed to sex as in the biological sense. She started off a female, and at about 3 months old, she escaped into the roo-yard. The roos um, well they were young and hadn't seen a girl in a very long time, so they did what they do naturally to girls - ALOT! If she was human, we would say she was gang-raped. She couldn't walk for almost a month after that. But I nursed her back to health, lots of vits and high protein food like liver and worms. Plus carried her everywhere with me. She was about 4 months old when she could walk and be strong enough to go in with her flock. She's a pure bread Buff Brahma we got from the hatchery with full vaccines. Other than a bit of a limp, she was fine when we put her back in with her flock. (there are 4 other boys in the flock) About a month later, at 5 months old, she started to act like a cockerel with the hens (dancing and intimidating). At 6 months old, she started crowing (the hen style crowing, not the cock crow). By 10 months old she was acting full cock behavour and full cock crow. By 11 months she was copulating with the hens. But get this By 8 months old, she was laying eggs. She is still laying eggs. She is laying eggs while being a cockerel. Aside from the hour or so when she is laying eggs, and that her vent is full hen shaped, she is a cock. So, um... weird? Or does this happen all the time? Is she just transgendered or is she hermaphrodite? She's not just taking over for an absent roo. She's 4th in command (of 5 cocks in the flock). There are just under 40 hens in the flock.