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Introduction to rare birds: The reserve is one of the areas rich in biodiversity. There are 450 species of plants, 402 species of birds, 26 species of amphibians and reptiles, 284 species of fish, and 31 species of mammals. Among them, the first-level wild animals under national key protection include red-crowned crane, bald crane, white crane, Oriental white stork, black stork, Chinese merganser, relict gull, great bustard, white-shouldered eagle, golden eagle, white-tailed sea eagle, elk, and Chinese sturgeon. There are 14 species of white sturgeons and 85 species of secondary national key protected wild animals, such as deer, black-faced spoonbill, whooper swan, little greenshank, mandarin duck, gray crane, etc.