Idk what’s wrong with him

[MROO]

I was just talking about separating him for a little bit, not until he reaches full maturity. If OP has other roos, introducing a grown roo that hasnt been part of the flock is probably not a great idea because he'll fight.

If he needs to be separated, it's best to remove him with a few hens/pullets. That way, when they go back in the main flock, they not only have a ready-made bond with several other birds, but as part of a group, there is not just a single target for the original flock members to single out. It's nearly always easier to introduce groups than single birds!
For now, though, I'd try adding another feeding station. That may mix things up enough to settle everyone down.

 

[Bigtom Turkey]

I still think it would be better to seperate him fro a few weeks. (but we can disagree)

 

[MROO]

I think the key here is that the rooster (cockerel? - under a year old?) is standing with his eyes shut. That means he doesn't feel well. Have you treated for coccidiosis? That's really common, especially in birds only recently introduced to the outdoors (it lives in soil - all soil.) A dose of Corid (amprolium) in their water for a few days is a benign - and often life-saving - treatment. Dose everyone's water and remove all untreated water from the coop and run, to make sure everyone gets it. Give your sick roo/cockerel a few drops - undiluted - alongside his beak. He'll swallow it without too much fuss and without danger of drowning him, that way. If any of your other bids show signs of lethargy, dose them, as well. It won't hurt them.
If your youngster is fighting coccidia, you should notice a difference within 48 hours. Sometimes it's dramatic! When you stop the Corid treatment (usually five days) make sure you clean out your waterer and add a poultry multivitamin. This is crucial, because Corid removes the vitamins that coccidia require to survive. Unfortunately, chickens need them, too, so you need to replenish them ASAP or your birds will crash.
Good Luck, and please, keep us posted!

 

[Ethanpg22]

It's time to add another feeder and waterer to your set-up. In this cold, he can't go long without food and water. If you set up another feeding station, he has a better chance of getting his rations without being chased off.
How many roosters do you have in that coop/run? Ideally, that's how many feeding stations you should maintain.

I have 1 full grown rooster abd i just found out that two of the 4-5 month old chickens i bought were roosters