I noticed my rir's butt was looking a little dirty. Upon closer inspection, I noticed what looks like a yellow waxy, crusty buildup on her skin just below her vent. Vent looks healthy with no sign of discharge or odor. Some of her pin feathers fell out and had the same waxy substance (consistency of ear wax) on them; not the normal white wax seen on pin feathers. What do you think this is? At first I thought it was vent gleet but there doesn't appear to be any discharge or odor. I've attached pictures, including pics of feathers with waxy coating on them. Any thoughts on this would be appreciated.