I have a rooster Oskar that did not seem at all interested in jumping his girls for a whole year. I have now borrowed a second rooster Sune and moved out Oskar to solitary confinement in the hope of getting some chicks. I would still love to have chicks from Oskar, he is an old Flemmish breed, adn we like to keep the genetic material. Do you think putting one of the hens with him after a while can induce him to jump them?