I bought these hens from a guy down the street that started neglecting his animals. Im not sure if this is a molt or a protein deficency when I brought them home they were almost completely bald backs but now they have pin feathers. Im giving them 18 % protein lay crumbles and cat food some scratch mixed in ( i cant find oyster shells anywere). I dusted for mites also this morning . thanks in advance ! They have never even laid an egg either !