We noticed one of our RIRs getting harassed a couple of days ago, followed by blood on her backside. After getting her isolated we noticed a good-sized sore spot on her bottom. We've had her in the dog crate for a couple of days and was getting ready to return her, when we noticed a second RIR in the run with the exact same injury, with our two remaining girls relentlessly pecking at her. Because we have limited isolation space we just decided it would be best to separate the two aggressive ones and keep the two injured ones in the coop. We now have the two perpetrators in separate dog crates with the two recovering ones in the coop, where they seem to be leaving each other alone. Interestingly enough, the two injured ones are the ones that seem to be laying right now (we got all four of them as pullets back in July and started seeing eggs a couple of weeks ago). So basically I'm wondering if we did the right thing by isolating the two aggressive hens, the thinking is that the pecking order will get reset in the time it takes for our two injured ones to recover. Any feedback would be appreciated.