“鸟口普查”上新装备！云南用声纹监测已为232只珍稀鸟类“建档”

Core Viewpoint - The article discusses the migration of birds to Yunnan, highlighting changes in the scale, distribution, and protection measures for migratory birds this season [1][3]. Group 1: Bird Migration Monitoring - In Yunnan's Ailao Mountain, over 1,400 migratory birds have been ringed since September, indicating a significant influx of species during the migration season [3]. - The Ailao Mountain area is recognized as one of the seven global migratory bird pathways, attracting numerous researchers studying nocturnal migration [3][5]. - The bird monitoring station has recorded over 63,000 birds from 257 species over 22 years, providing essential data for studying migratory patterns [5]. Group 2: Technological Advancements in Bird Monitoring - Researchers are employing various technological methods to enhance the comprehensiveness and accuracy of bird monitoring, including the installation of tracking devices on cuckoos [5][6]. - A tracking study revealed that cuckoos can migrate over 18,000 kilometers between Africa and Russia, showcasing their remarkable migratory capabilities [6]. Group 3: Bird Population Recovery - Yunnan has seen a general recovery in bird populations due to strengthened monitoring and protection systems, with 1,032 bird species recorded, representing over two-thirds of China's bird species [8][10]. - The province has established a comprehensive bird protection system, including hunting bans and designated migratory pathways, which has led to an increase in bird populations, including rare species [10][12]. - Recent monitoring indicates a 15% increase in wintering waterbird populations compared to 2020, reflecting successful conservation efforts [12].