Under the Haituo Mountain, the ice and snow of Yeya Lake wetland has gradually melted and migratory bird flock comes back.

On February 2nd this year, the 27th World Wetlands Day, the Yeya Lake Wetland was successfully listed in the List of Wetlands of International Importance, which is also the first in Beijing. From the establishment of the Yaya Lake Wetland Nature Reserve in 1997, it has taken a series of measure such as the prohibition of grazing and fishing. In the past 26 years, Yeya Lake Wetland has undergone tremendous changes.

"The migratory bird vanguard has returned!" In mid-February, the swan first appeared in the camera of Black Leopard Wildlife Concersation Station chief Li Li and his friends. In the following days, grey cranes, taiga bean geese, swan geese and other wild geese also returned to the north. Thousands of birds stopped at Yeya Lake.

Yeya Lake Wetland Nature Reserve is located in the northwest of Yanqing District, with a total area of 6,873 hectares. It is the wetland nature reserve with the largest area, the most wetland types and the richest biodiversity in Beijing.

At present, 368 species of birds have been recorded here, including 22 species of first-class state protection and 63 species under second-class state protection, including rare and endangered birds such as red-crowned cranes and pochards.