I went out yesterday and picked my 6 mo. old golden comet up for a cuddle. Anyway, I noticed a fist sized lump right in the front of her chest, buried under feathers. It feels like an extra wing, kind of crunchy (feathery feeling), but is under the skin, and is smooshable. I pressed on it, and it made a big dent that i could feel. Some kind of edema? it doesnt seem to bug her, and i pestered it for a while. She seems healthy. what could it be?