My 6 week old Buff Brahma still does not have all it's feathers. The rest of the Brahmas same age are fully feathered. They will be 7 weeks Saturday. The chick's back is still all fluff and no tail feathers yet. I bought them from tractor supply when they were days old and supposedly they are pullets. Could this baby be a roo? Or just a late bloomer. The other chicks pick on the animal to the point of pecking bloody holes into it. I have the baby in my infirmary now until the baby heals.