Perhaps the OP can provide us a photo of each of her hens.
@Kat C sorry, no offensive, but we will have to agree to disagree unless the OP shows more photos where clear signs of molting is present. Broken feathers and skin with the feather shaft still intact, in my experience is not an indication of molting.
Molting for the most part progresses in a specific way- feather loss starts on the head/neck, then the back, across the breast, thighs, then finally the tail feathers.
@Kat C sorry, no offensive, but we will have to agree to disagree unless the OP shows more photos where clear signs of molting is present. Broken feathers and skin with the feather shaft still intact, in my experience is not an indication of molting.
Molting for the most part progresses in a specific way- feather loss starts on the head/neck, then the back, across the breast, thighs, then finally the tail feathers.