桑干河畔，又见“老朋友”

Core Viewpoint - The article highlights the ecological changes and the increasing bird populations at the Sanggan River National Wetland Park in Shanxi, China, driven by conservation efforts and community engagement [5][7][9]. Group 1: Ecological Changes - The Sanggan River, an important stopover for migratory birds, has seen a significant increase in bird species, with the number of pelicans rising from 2 to over 50 [5][7]. - The presence of the Oriental Stork, a nationally protected species, nesting in the area signifies positive environmental changes [5][6]. Group 2: Conservation Efforts - A management plan for the wetland park (2024-2028) has been established, focusing on comprehensive management, waste removal, and the creation of protective forest belts to enhance bird habitats [7]. - Local authorities have initiated protective actions during migratory seasons, including patrols and surveillance to prevent illegal harm to birds [7]. Group 3: Community Engagement - The photographer, who has evolved from merely observing to actively caring for injured birds, reflects the growing community involvement in wildlife conservation [9][10]. - The establishment of a wildlife rescue point near the wetland park demonstrates the commitment to rehabilitating injured birds and releasing them back into the wild [7].