I haven't ever had this breed before so I am confused about what is happening to these guys. They seem to be missing feathers on their backs and a couple of them have really thing tails. I don't see any feathers on the ground or in their hutch so I don't think they are molting. They aren't very old they are still chicks so I think I'm sure that the missing feathers aren't because of the rooster. Can anyone tell me if this is normal