This is a demonic, horror chicken-nurse from an 1960's hospital. After their hospital burnt down with everyone trapped inside, they were raised as grotesque monsters. The chicken-nurses run and kill people in packs. The alpha female - the head nurse - is the only one allowed to keep hair. All the rest of the chicken-nurse in the pack have to regularly groom and pluck each other's hair out. If the alpha female sees another chicken nurse not being bald enough, she'll rip her a new one.