Introduction to migratory bird migration: Dalian is an important migration destination for migratory birds. Due to its good vegetation, natural waters, and rich bird food sources, Xijiao Forest Park has become an important stopover for migratory birds when they migrate through Dalian. Every year in spring and autumn, more than 300 species and more than one million migratory birds pass by, forming a spectacular scene. Among them, there are fewer waterfowl flying through the western suburbs park and more raptors, songbirds and doves and pigeons.