密云迎候鸟迁徙高峰，“先头部队”飞抵密云水库

Core Points - The article highlights the arrival of migratory birds, such as bean geese and swans, in Miyun District, which serves as an important stopover for these birds during their migration [1] - The peak migration period is expected to last until late November or early December, with rare species like gray cranes and oriental white storks also expected to arrive [1] Summary by Sections Migratory Birds Arrival - Miyun District has welcomed the first wave of migratory birds this autumn and winter, including large flocks of bean geese resting around the Miyun Reservoir and Qing Shui River [1] - The district is noted for its rich bird diversity, recording 419 species of wild birds, including 22 species under first-class national protection and 73 species under second-class national protection [1] Ecological Protection Measures - To protect these migratory birds, Miyun District has established a safe and comfortable "ecological service area" by creating habitats, shallow wetlands, and planting aquatic plants [2] - The local authorities, along with volunteers, have formed a bird protection team to monitor and record bird activities, while also discouraging disruptive behaviors during the migration season [2]