I successfully keep groups of roosters together, especially if they were raised together, but i am just getting logistically fried by keeping them in separate groups. when i put hens together i do it in groups so that there is a complete re-shuffle and it works well, I have also re-integrated two roos into a batchelor pad in a dog crate for a couple of weeks and then letting them mix in. I have been considering starting with a totally new unfamiliar coop, away from hens, and merging roos together at night just like i do with the hens. I currently have about 13 roos, some with hens and some in groups together. All are different ages but none older than 1 year. and none younger than 4 months. the plan being that they would all be unfamiliar with each other (ie; no ganging up on the newbie) and that they would just sort out the pecking order. The coop is 8 x 16 ft. ?????? just looking for some words of wisdom. PS: these are not for eating they are breeding roosters.