I recently received 2 Ameraucana chicks from a hatchery. One of the chicks looks like his back is too short - or there is no tail. It looks alot different than the other one. This chick was also a bit sickly at first with curled up toes on one foot. Could this just be a deformed chick or is it possible that a 'rumpless' gene from way back has shown itself (I have no clue about poultry genetics/breeding)? I would post pictures, but for the life of me, I cannot get it to work following the directions.