What is the image of Zigui in The Cry of Huayang Falling Flowers?

Zigui, cuckoo, also known as cuckoo. Legend has it that its predecessor was Du Yu, the king of Shu. He looked at the emperor, but later he lost his country and died. His soul became a cuckoo and he cried sadly. This article is based on this story. Imagine cuckoo leaving the prosperous country and floating around year after year. This tragic experience is paving the way for the following expressions of sadness.