And that’s how you do it. Watch, observe, cull as you see fit. I currently have a one year old rooster, and two 7 month old cockerels. The rooster and last year’s pullets (12 of them, now mature hens) live in one coop, and the cockerels live in another one with 21 two and three year old hens. The cockerels were a complete surprise. They were hatched out in October, and both looked to be pullets going into winter. Admittedly, I hadn’t spent much time with the chickens since going back to work in the fall. In December, the rooster of that coop died unexpectedly. DH found him dead under the roost one morning, no obvious signs of illness or injury. In February, he called me at work and said, “Did you know there was another rooster in that coop? I just heard it crowing!” When I came home, I looked and saw that not only was there one rooster (cockerel), but his hatch mate is also male! So far, they seem to be getting along. One is obviously dominant over the other. I wondered how things were going to go when enough snow melted to let both coops out to free range. I was a bit worried that Big Red - the one year old - and the dominant cockerel would fight. So far, they each have their harems and go their separate ways. If it stays that way, great! However, I am prepared to get rid of any or all of them if there is fighting, or if any become human aggressive. I have small grandchildren who like to help pick eggs, so I will be watching them closely.