I would separate HIM. How big is your coop in feet by feet? How about your run? How many feet of roost space do you have? Have you checked for mites?Hmmm, I know I couldn't personally kill him myself, I'm just not wired that way. I will try separating (have done so before) but he really only hits on these 2 for some reason. Until I can find a suitable long stick, I'll continue to use the water bottle. Seems to be working, for now at least. He's not mean to the 2 hens, per se, he's just SO HUGE I think he hurt the one just by jumping on her. I did put a hen saddle on her but it's getting too warm here to keep in on much longer. Why can't we all just get along?? Oh, and thanks for your advice!