New entry gets his leg tied for like 2 days and then he is free to hang out with other hens. If u already have hens then newly introduced cock will Not go anywhere. But breed with hens and stay there all his life.... But young cocks and young/old hens They love to explore and forgetting their way back to new home. So its better to lock them up. Take them out. Feed them, let them play for a while and then lock them back . Repeat this for just 3 days And be sure to keep them hungry and semi thirsty.. i have been trying this for 10 years.