You need to get your bird in to see your avian vet ASAP! Nobody, not even Dr B, can diagnose or prescribe treatment over the Internet without seeing your bird in person.
If you do not have an avian vet, you can look for one on our Find an Avian Vet page. You must find an avian vet, regular dog/cat vets often kill birds during routine visits because of their lack of training and experience with exotic birds.
