I did my usual inspection of one of my hens, just to make sure she doesn't have fleas, ticks, lice, or mites. I gently lifted up a patch of feathers on her back and noticed she had a patch of feathers about 1 1/2" x 1 1/2" in size missing. There was no damage to her skin. This spot is only visible if you pull up a patch of feathers. She isn't on the top of the pecking order, in fact, she's closer to the bottom. Does anyone know what is causing this?
