Why is the bird vomiting

The bird's vomiting explains the estrus.Raising this kind of bird to feed it mixed with Suzi, Duzi and Gutzi, and also with vegetables and water.In winter, solar baths every morning can be warm to keep it warm and warm.Summer is not suitable for sunbathing, and it must be placed in a dark and cool place.This bird can be trained appropriately, so that it can be connected and released, and it can also produce new varieties with hibiscus birds.