I am a new silkie chicken owner. My chickens are now around 5 months old. I have one cockerel for sure right now and 4 others that I don't know as of yet. However, I have one hen that has been with the others since they were about 6 weeks old. Well yesterday after a period of quarantine, I put my new hen about 4-5 months old in with the others, low and behold my rooster did some sort of dance around her, rubbing up next to her, and then tried mounting her. What I don't understand is why he has not tried courting the existing hen that has been with him? are roosters selective in mating? And...how do you know that the hens are ready to lay eggs?