I have a young rooster, hes about 8 months old. I have had him separated for a month now from the girls, but within eyeshot of them. he can see them and they could see him. I did introductions yesterday and everything was fine until today. At some point today, my rooster attacked one of my girls. The back of her comb is nearly torn off, theres blood everywhere. She is my dominant hen so i think they had a tussle and she came out the loser, I found her huddling by the water dish, her head covered in blood. I cleaned up the blood and liberally covered her comb and abover her eyes with polysporine for now. Im worried though, is tis something the rooster is going to keep doing? He didnt seem nasty to the other 2 hens he was living with before getting put in with my 4 egg layers. When he was introduced, he kept doing this spastic little dance, kind of like what a roo does when he is flirting with a hen. His wing would go down and the opposite leg would kick around uncontrollably. It looks like he isnt quite coordinated yet, but could it be that that was a sign of aggression? Every roo I have had before him drops their wing but does not dance when they are being aggressive. This looked like he was trying to dance instead. Ive separated him out and he is back in his old run alone now. I think a week alone might change his attitude, but Im hesitant to put him back in with the girls ever again. What should I do?