Hello, and welcome to BYC. If your drake is mating your chicken hens, there is the potential for injury/death. Drakes have penises - roosters do not. The reproductive tract of chicken hens is not designed for the insertion of 'objects'.
Hi and welcome to BYC. Chat with other BYC members nearby using the links in my signature, below (turn your phone to landscape to see them).Make yourself at home and enjoy the forums.