Change in the bird's appearance or posture. Any enlargement - even fat is abnormal in birds. Unusual crustiness, discoloration or inflammation of the face, beak, feet or legs. Bird owners will want to be watchful of their birds health. Annual physical examinations are a good investment.
Every new bird needs a complete physical.
Also, remember, you can't judge a bird's health solely by their appearance. Birds are masters at hiding signs of sickness. Looking good in the wild is a matter of survival. The following symptoms may not require emergency treatment, but because they are abnormal, any bird showing these signs should be check checked by your veterinarian. Prolonged molt or continual presence of pin feathers.