Enter the bird cloud (in the bird cloud)

In spring, migratory birds return to the north and disappear into the clouds. “Enter the bird cloud”; bird, spider, exist In early spring, migratory birds such as geese, ducks, and swans that have spent the winter disappear behind clouds as they return to the north. A figurative expression for \"the bird returns home.\" A seasonal word that conveys a touch of loneliness. ①－④；Generated with Bing Image Creator ⑤: Independently generated with ChromaFT_v4