Quote: I think they were referring to breeds expected to be aggressive or to fighting/game breeds. Which can also be as docile as the next. He/she also mentioned 'blooded' birds, which I would guess might mean the same as a blooded hunting dog --- it's killed before.
Quote: This will solve your problems if you only ever want one roo. But one roo can't tend 20 hens or be relied on to fertilize that many eggs. So you have roosterless hens in your flock, no matter his greediness. He had no need to stop the other roo doing anything, he couldn't do it all himself anyway.
But now you're removed the other, that's how people end up with one violent and intolerant roo with too many hens. It's fine if you don't breed them, but if you do, it's trouble waiting to happen. Best wishes with that.
Personally I would have either let them sort it out, or removed the aggressor. The other one wasn't necessarily 'weaker' for being less aggressive. Possibly just 'saner'. It's unreasonable in my book for one rooster to try to have so many hens to himself. He was likely just bent on being aggressive since it's not likely he can even mate with them all every day or often enough to ensure fertility. Some roosters can have 100 hens and not be able to fertilize more than 5 hen's eggs but will kill any other rooster they can get at. It's an attitude that represents imbalance, not a sign of good genes or superiority. The sane rooster doesn't want to fight to the death and he's often the one that gets killed so an insanely violent rooster can pass on his genes and attitude.
But each to their own. Whatever works for you.