We have 6 rescued "spent" hens. Two have turned orange. Their legs are orange, their faces are bright orange and their eyes are spooky orange. Why oh why is this happening?? Someone suggested that it's the layer mash that they are currently being fed, which has corn in it. However, they eat a lot of scrap veggies and cooked brown rice and run about my backyard eating whatever they find in the garden. I've put crushed garlic and raw apple cider vinegar in their water. They were on tetracycline for, what I think, was/is brooder's pneumonia. All 6 chickens have been exposed to the same diet/environment so why are only 2 orange?? So confusing! Any advice would be appreciated.