see learned something new today, that always makes it a good day, Thank youI’m not OP, but it is possible. But only in hens. I think it happens when the reproductive system is damaged. They moult and grow in male feathers, grow a larger comb, stop laying, start crowing and they’ll try and mate but they are infertile. Roosters cannot change sex. But I read they do act like hens once caponised.