Fluff is the only remaining Silkie from a batch I bought several months age. He is sexually mature now. All my mature hens are of the EE variety and are too large for him to mount. I have been trying to locate adult Silkie hens for him but nothing is available. He has resorted to chasing my adolescent chickens and pulling the feathers off their butts. Every evening he stands at the door to the coop and waits. If I'm not there to chase him off he usually gets 2 or 3 before they can get around him and into the coop. I don't want to get rid of him. What can I do to stop this behavior?