I had 20- 9 week olds in a grown out coop with a run. They all were doing great and in one day I found one pullet dead with lots of feathers gone and a cockerel and other pullet with some of their tail feathers gone. I felt horrible. That day I got rid of 4 so down to 15, separated the 2 injured and sprayed them with Blue Kote. They are on Purina Medicated Chick feed but I’m also now giving them some extra scrambled eggs and I’m letting them out into the big run with the older flock in the afternoons and I’ve added a 3rd feeder in the grow out pen. I’m keeping it so they can run back into their grown out run to get away but the big chickens can’t get in. Everyone seems to be getting along fine. When should I put the other 2 back in?