Hi, we are new members and new chicken owners of 22 mixed breed, sixteen week old chickens. We just arrived home from a two week vacation and found that about half of our chickens had lost most or all of their tail feathers. A few have red/pink looking butts where the feathers are missing. Our chickens have not started laying and so far we have not witnessed any real fighting or pecking. What should our next actions be to help our babies? We welcome all suggestions, Freaking out in Issaquah Washington.