What is going on with the buttocks of the Belled Bird?

The stubbornness of the Belled Bird's butt indicates that the stomach is not good, or something that is not clean.This bird usually eats grass seeds and insects, and basically does not destroy crops.If it is artificially breeding, you need to feed it with eggs, or you can also supplement some animal feed, which can ensure nutritional balance.It should be noted that the food that is not eaten every day should be cleaned up, so as to avoid affecting the health of the birds after the deterioration, causing it to suffer from disease.