What is the old opening mouth?

White Face Shanbi often opens his mouth because he needs to heat dissipation.This kind of bird must pay attention to sun protection in summer, high temperature and environment where air is not circulating, which can easily affect the health of the birds.There is not much change in daily feeding, but because the food is easy to break, it cannot be placed too much. At the same time, it must be cleaned up every day without eating food and the water that is not finished, and add a new one the next day.If the bird eats the stomach, it will affect its health.