What is going on when the black tail hair is falling

The 说 tail hairy is lost, indicating that it is in the change of feather, or it may be sick, or the hair removal caused by malnutrition.If the hair is caused by changing feathers, the hair in other places will fall off except for the tail. At this time, we must do a good job of hygiene.If it is a hair loss caused by illness, the cause of the disease needs to be checked and the treatment means.If it is due to malnutrition, it is best to feed some nutritious foods.