Last season, before the season, I had a ranch with 10-12 toms on it, and a handful of hens...
As the season approached, there were only 3 toms that I ever knew about and a lot more hens...
Not quite sure how those fights for dominance work, but I do think that both dominant hens and toms change things up... In the past, I have noted that where there are hens now, almost certainly there will be toms, and where there are a lot of toms, there will be hens, and less toms... At least is seems that way to me.