I am on my phone so i cant see the pic great. It does look like autosomal barring. It is also looks lime a pullet to me. It can moult out but i would not use them in breeding. I am not really sure what causes it. Pink knows more about it than i do. I understand reg barring but not autosomal.......maybe because it is not a good think to have so i have just culled it the few times i have seen it.