What's wrong with white -faced mountain bird's buttocks sticky shit

The white -faced sparrow butt sticky shit is because of illness and needs to be treated in time.It mainly eats insects, such as golden flowers, golden turtles, poisonous moth juveniles, thorn moth larvae, ruler moth larvae, ants, pine caterpillars, etc. In addition, you can also eat snails, spiders and other animals, grass seeds and grass seeds and grass seeds and grass seeds.Flowers and other plants.This kind of bird is also called Dashanque, which is a kind of bird staying. It is lively and bold. It is not very afraid of people, and the action is very agile. After being frightened, you can fly away quickly.