This is a 6 year old thread.I read that it has been recorded that sex changes can happen, something to do with internal organs. Makes sense since people and animals alike can be born with both sexes, but it is not real common. I'm still learning about this because my rooster just laid an egg I think. I will have to post pics, but I noticed he doesn't crow and he is much slimmer with higher tail, very different from the other 2 I got at the same time. Im questioning my whole existence right now! lol.