What's wrong with Huang Yan's butt sticky shit?

Huang Yan's butt sticky shit is usually caused by disease and needs to be treated in time.Raising this kind of bird can also feed other foods, such as bread crumbs.It is usually a bird, and rarely has the characteristics of migration. It usually stays on the tree, flying between branches and looking for food, rarely go to the ground.Its color is more beautiful, and the cry is very beautiful. It is mostly seen in warm areas and is distributed in many places.