I'm totally new to chickens. We have 9 chickens in the coop and two are fbcm roosters and one sizzle rooster. We plan to thin out the roosters soon. The Marans are 3 weeks older than most of the flock except I have one Marans hen that is the same age. One of the fbcm rooster just started to get "mean" with the hens. He attacks them if they aren't eating how he wants them to or if they get in his bubble. Of course I think he might be mounting them now too. So is it normal behavior or not? The other fbcm rooster doesn't even crow. Usually it's a crowing battle between our sizzle and the "mean" fbcm. I appreciate any help or advice. Thank you.