I have a hen (golden laced wyandotte that is about 2 years old) that has been acting weird for the past month or so. She keeps to herself no matter where she is, is very lethargic and not her normal self. At first I thought she may be broody but I'm not sure anymore. I noticed yesterday that she is missing most of her feathers around her vent (see picture). Her comb and wattles appear to be normal and her eyes look clear as glass. I spoke with the vet and they don't see chickens nor know of anyone who does. I am kind of at a loss as to what to do...