As I mentioned in yesterdayâs post about the house where Joan Crawford (aka Faye Dunaway) lived in Mommie Dearest, I have become just a wee-bit obsessed with the 1981 film as well as the 1978 autobiography of Joanâs daughter, Christina Crawford, on which it was based.
The rooster's sexual organ is called a papilla, a small bump inside his cloaca from which semen exits. To mate, a rooster climbs onto the back of a hen, standing on the hen's back and using his wings maintain balance, and forcefully touches his cloaca to hers in what's known as a cloacal kiss.
   When a hen first starts to lay even though the rooster has been  doing his job you will find infertile eggs. Then, however, you will  notice most eggs are fertile.  Some roosters do not cover their hens well, or will be less  fertile than others-hatch rates may vary.epending on when the hen's last egg was laid, the next egg laid after the hen was mated will most likely be fertile. A rooster is necessary to have fertilized eggs, but a hen will lay eggs even if no rooster is present. Incubation time for fertilized eggs is 21 days.