I would put rooster up and I would not allow him to have any kind of contact with his other mates until you see some improvement in your chickens feathers. If you do see an improvement then you might need to deal with him or trade him for a gentler rooster. I had to put up my roosters and a separate holding pen because they were very abusive to the hens... I have a young hen who has been injured due their aggressive horny nature. Good luck.