Loner sultan

[kimmybee]

I have 16 4 month olds trying to merge them with my 3 one month old bantams, one of the bantams is a sultan the other two are silkies. I had to pull the sultan out as the silkiesnwere pecking his head to bleeding point. When I try to put him back in they keep pecking him even though his head is heLed and I kept them in side by side brooders where they could always see each other. So I tried to put him in with the big chicks and they attacked him. So he is alone and I am not sure how to handle this. Any advice?