Yes
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Yes, separate him. If he bleeds, the others will continue to peck as chickens are canibalistic. I've had this going on sine June and my poor roo's skin isn't healing, nor are his feathers back. Every time they start to grow they are pecked out. I've used Veterycin up til now and after posting pics in another forum I bought Blue Cote today. Will spray him tomorrow and maybe bring him back into the house to heal up some. I am posting pics of what was done to him. His poor tail was the worst. And he's just the sweetest roo. Oops-pics are in my phone. I'll post after this one.