"Mixed Bantam" pick

[lilchick88]

My husband and I bought 6 barred plymouth rock pullet chicks and happened to see this tiny little thing in the mixed bantam group. We had a week long battle of pasty butt with her but shes finally doing well and with the other chicks but still the little one of the group. I was thinking she looks like a japanese bantam and was hoping for the black tail white one but maybe someone with a more experienced eye can tell me. Hopefully she is she! Lol thanks in advance