Introduction to migratory birds in Dali Lake: Dalinuoer Lake stretches hundreds of miles into the sky, with a vast lake surface, meadows and wetlands, which is very suitable for the survival of birds. According to repeated research by experts, there are 109 species of birds of 15 orders, 32 families, including 6 species of national first-level protected birds and 18 species of second-level protected birds. It can be described as a "bird paradise". Every spring and autumn, migratory birds migrate in large groups, and hundreds of birds chirp on the lake, creating a lively scene. It is the best time for photography and bird enthusiasts to create and observe. Due to the sharp increase in the number of white swans in recent years, Dali Lake is also known as "Swan Lake".