I posted a few days ago with a question about my RIR with an injured comb. Followed advice and separated my injured hen during the day. I put her back in the coop each night because I live in the woods and don't have a second cage that is predator proof. When I put her back in the coop tonight, one of my Australorps aggressively pecked at her comb and made it bleed. I had coated her injured wattle with Black Salve (meant to deter pecking) Obviously, the RIR is the lowest in pecking order but is it usual for the other hens to be super aggressive? Would getting a rooster help curb the hen's aggressive behavior? I could not find the Blu Kote at my local feed store. Is this all normal and what should I do next?