What's wrong with the compromised parrot tail hair

The compromise parrot tail hair was lost because of changing feathers.The eclectic parcel is usually changed in autumn, and it will take about 1 month to complete.It is best to keep the environmental hygiene during the feathers, and clean it regularly. Clean the shed feathers and its feces, so as not to cause birds to get sick.In addition, it is necessary to give it sufficient food, and the nutrition must be comprehensive, so as to change the feathers healthy.