Can anyone tell from this picture what this lump might be? It started a while ago and has gotten bigger and bigger. Now, it is even a little bigger than in this picture and has started to bleed from the back side of the lump. From reading up on mites, I don't think that is it. I read that someone had something like this lanced on their bird and a bunch of gunk came out but I hate to cut into anything if I don't know what it is. He is eating, drinking and mingling fine with the other birds and has no trouble walking yet. I just don't know what else to do now that it keeps bleeding. Please help!