If you have a bird, I strongly recommend Dr. Hauck and his colleagues. We have cockatiels, and this is where we take them for checkups and illnesses.
Every time we have been there, Dr. Hauck has taken the time to explain everything to us thoroughly, and answer any questions we have.
In addition, I recently found a pigeon with an injured wing. I brought him in, and Dr. Hauck looked at him for no charge, then gave me advice.