I noticed that my quail has been not using her right leg (limping). Upon further examination, it seems she has a fungus on her leg. Please see pic. Does anyone know what this could be and/or how to treat it?
I think that's actually bruising. I've seen it before on birds (grew up with half our house being an aviary) who have had injuries. For example, if they whack the leg on something, or if it just gets hurt somehow, the whole limb can bruise bright green. It would also explain the limping. That looks more like a wound that has bruised, and some feathers have fallen out from the swelling (you can see it's swollen).
She won't stand on it. She hops around on her left leg without putting her right leg down. She just started hopping around yesterday. I imaging this condition has been present for a while. It has just finally reached the point where it is affecting her mobility.