I just introduced a Buff roo to my six happy hens and two peahens. Things didn't go well. He immediately attacked my dominant RIR. I broke them up but not before she drew blood on his beard(?). He went after the peahens too. All I did the first 15 minutes was break up fights. Is this normal? Things have gotten a little quieter, hence I"m in here asking for input. I know there's a "pecking order" that needs to be established, but I really wasn't expecting fights, just a little pushing and shoving so to speak.