If the roos were raised together, that helps. I've had 2 roos in the same pen before, usually they work it out who is the dominant one and the dominant one is the one who gets the hens and the lesser roo, just gets to live there. One day, the submissive roo decided he was done being submissive and had a knock-down drag-out fight with the dominant roo. I stepped in and seperated them and maintained them in seperate pens from then on. So, in your case, it may work out fine, but I'd just let them be together for now and when they're older decide which one fits best with your flock and go from there.
On the other hand, I've had as many as 9 roosters and cockrels living together without any fights or problems. The trick to that was they were no hens, so nothing to fight over and they got along perfectly (until they were all eaten by a fox.)
On the other hand, I've had as many as 9 roosters and cockrels living together without any fights or problems. The trick to that was they were no hens, so nothing to fight over and they got along perfectly (until they were all eaten by a fox.)
