If you have too many roosters, a simple solution is starting a rooster flock. A rooster flock is a flock of all roosters, with no hens.
Feeding and Watering Your Rooster Flock
If you have more than two roosters in your rooster flock, it's a good idea to have multiple feeders and waterers. I think two or three feeders and two waterers is a good amount for most rooster flocks. Of course, it's not always necessary to have multiple feeders and waterers, especially if you always have a full feeder or have especially easy going roosters.
I also recommend people who have a rooster flock to feed flock raiser, grower, all flock, or another similar feed instead of layer feed. Roosters (and other non-laying birds) don't need the extra calcium in layer feeds, and it can damage them if used for long term.
Introducing New Roosters to Your Rooster Flock
There are a few different ways to integrate new roosters into your rooster flock. One way is to simply put the new rooster in the pen and make sure that he isn't hurt too badly by the existing roosters. When you have less roosters in your rooster flock, this method is more successful. It also works better if you have mild mannered roosters.
Another method of integrating roosters into your rooster flock is putting them into a smaller cage within the main rooster pen. I have had success with this method, and it's been helpful when the above method didn't work. It's especially useful when you have a larger number of roosters or a more assertive flock.
I usually will only keep the rooster(s) in the smaller cage for a day or two, but if you feel that they need to be in there longer, then go ahead! I find that a large dog crate is usually sufficient when adding new roosters using this method.
Most of the time I find that it's better to add new roosters to your rooster flock while they're free-ranging. This way the new rooster can easily get away from the others. It also prevents all the original roosters from ganging up on the new rooster(s) and injuring them more than necessary.
Even if you have a large run, or if you can't free-range your roosters at all, they will still be fine as long as you take the proper precautions, such as the methods mentioned before.
If you're afraid that your roosters are being too rough with the new guy(s), remember that comb and wattle wounds often look a lot worst than they actually are. I've had roosters get so bloody in the comb area that I thought they must actually be hurt, but it always turns out that it's just their new over-enthusiastic flockmates trying to assert themselves. If you are still worried, don't hesitate to check up on the new rooster(s) and maybe even clean off their comb a little. I usually do this right after introduction, so I can also make sure the new rooster(s) is not injured in any other way.
How to Deal With Bullies
In a rooster flock, a few fights to establish the pecking order are perfectly normal. But, if a rooster is constantly attacking and/or chasing another rooster and not leaving him alone, you might have to intervene.
Roosters will bully each other for a variety of reasons. Sometimes the pen is too small, and they're fighting because of stress due to lack of space. Sometimes the bully is a young rooster who wants to dominate the older roosters that once bullied him. Sometimes you get a rooster who is just overly assertive, or has a feud against another rooster in your rooster flock.
There are several ways to deal with a bully rooster. One way is separating him for a little while from the rest of the rooster flock. When he's added back in, usually within a week or so, he will have to establish his rank in the flock all over again and might be too distracted to worry about bullying another rooster. Another way to deal with bullies is to expand the roosters' pen and/or add more feeders and waterers.
Sometimes it takes a while for a new rooster to be fully accepted by the rest of the rooster flock. For instance, I added a new cockerel to my rooster flock and he got bullied for around two weeks before they finally accepted him. He still occasionally gets pecked or chased, but it's only to remind him where he is in the pecking order.
Thanks for reading my article! If you have any questions, feel free to ask them on this thread: