I have a Green Ring neck parrot for last 1 year. He started losing feather for last 4-5 months. Now he has bald patches around beak, eyes and over head which is extending towards neck gradually and his ears are clearly visible now. He eats well, active, move around, talks, shouts and droppings are also normal (same as it was before losing feather). No fluffing, sleepiness or laziness. He eats fruits, peanuts, sunflower seeds, melon seeds, tomato, cucumber, biscuit, bread, rice. There is a calcium block in his cage for last one month. He does not drink water. I dont know his exact age. When we bought him his owner told us that he is 3 years old. According to this he must be 4 years old now. But we are not sure. We dont have any other bird in our home. He does not rub his head and face. No exposure to tobacco smoke. No feather plucking. His whole body feathers have also become dull green. Not as shiny it used to be.No sneezing and runny nose.