What happened to the crimson parrot tail hair

The crimson parrot tail hair is usually because it is changing hair.Changing hair is a normal physiological phenomenon. In addition to the young birds, the crimson parrot will experience the change of hair, and the birds will change the hair regularly.When changing hair, you must feed more nutritious foods to promote the development of new feathers. At the same time, you must also do a good job of hygiene. If the environment is too dirty, the birds will also infected the disease during the feathers.