The key phrase is "may eventually". That is correct, it may, but then it may not. There is one way to find out.
When chickens have pretty much unlimited room the typical pattern is that roosters carve out a territory and attract their own harem. The roosters defend their territory and there is sometimes encroachment, but they basically keep separated that way. One member who does that says the typical flock is 1 rooster and 7 hens though of course there are variations. The dominant rooster runs the cockerels out of the flock at some point and they form bachelor flocks. When they reach a certain point of maturity the cockerels may try to take over another rooster's harem and territory or carve out their own territory and poach a few hens from existing flocks. He spends a lot of time and resources on predator protection and raises Dominique and American Games.
If space is limited the potential for conflict goes way up. I've had some experience with multiple roosters but not a lot. There are enough posts with photos on here that show two grown roosters can sometimes coexist in fairly limited space. A lot of that depends on the individual personalities of the roosters. Some roosters are going to fight to the death no matter what. But some don't. when you are dealing with living animals about anything can happen.
When chickens have pretty much unlimited room the typical pattern is that roosters carve out a territory and attract their own harem. The roosters defend their territory and there is sometimes encroachment, but they basically keep separated that way. One member who does that says the typical flock is 1 rooster and 7 hens though of course there are variations. The dominant rooster runs the cockerels out of the flock at some point and they form bachelor flocks. When they reach a certain point of maturity the cockerels may try to take over another rooster's harem and territory or carve out their own territory and poach a few hens from existing flocks. He spends a lot of time and resources on predator protection and raises Dominique and American Games.
If space is limited the potential for conflict goes way up. I've had some experience with multiple roosters but not a lot. There are enough posts with photos on here that show two grown roosters can sometimes coexist in fairly limited space. A lot of that depends on the individual personalities of the roosters. Some roosters are going to fight to the death no matter what. But some don't. when you are dealing with living animals about anything can happen.