Hoping I can get some advice...this is Sprinkles, our 16-ish week old Speckled Sussex. This evening while I was holding her, I noticed she has this white, crusty stuff under her beak and neck area! It's hard, crusty white stuff and stuck to the feathers. I have no idea what it is. Maybe lice or nits? I've noticed a lot of head shaking and scratching, which I'm sure is related to this. A little background: we got her when she was about 8 weeks old. She's always been sorta "sickly"... looking lethargic and puffed up, having diarrhea and other strange poops, fluffed up with droopy wings, and shaking her head ALL the time. She's also underweight and just doesn't seem to be thriving. Unfortunately I don't have the money to take her to the vet right now, but we've tried Duramycin, Corid and most recently piperazine de-wormer. Nothing has made a significant difference for her. Has anyone experienced something like this with one of their birds? Any ideas of what I should do to try and treat it? Thanks in advance!