Hi, I'm wondering if there is anything I can do for my hen. She has had feather loss at the very base of her wings (the "armpit" area)... its such a strange location, as I know it is not being caused from the rooster. Also, the feathers have not been plucked out entirely. The thick base of the feather is still there in the skin, but the feather itself is gone. This is occurring on both of her wings, and it is only the one hen that this is happening to. Thanks so much in advance.