I think it might be some kind of infection.
Where in NC are you. IF you are close to Raleigh I would suggest taking him to Avian and Exotic Animal Care
or at least sending this picture to them on their face book page.
They are really good I trust them completely.
I would move him to a small hospital tank with moist paper towels (treated water) and cover 3 of the sides and place in a quiet area until you hear more form the vet.
Good luck.