Last night predator got in coop. Apparently the chickens unplugged the automatic door when on roost.Killed all but one. I have a large flock of barred rocks with 2 roosters. Should I even attempt to put single older buckeye hen in with them? Was going to try putting her in pen inside coop . Was almost ready to dispatch her, but had to kill my favorite rooster, he fought a good fight and found him hiding in corner of the coop this morning I assumed he was dead but kicked a little when I picked him up. Broke my heart. Thanks for any advice.