央视网消息：湖南位于东亚—澳大利西亚候鸟迁飞通道上，是我国中部重要的候鸟迁徙和越冬地省份。这些年，一系列科技手段不 断被运用到当地护鸟工作中，为候鸟迁徙和越冬保驾护航。 "北雁南飞至此歇翅停回"，衡阳因此也被称为"雁城"。这段时间，地处湘江中游的衡阳市衡山县萱洲国家湿地公园碧水映天、候鸟 成群。 "雁城"衡阳是候鸟迁徙路上的服务区，或者叫能量补给站，因此这鱼虾这些食物丰不丰富至关重要。 在萱洲国家湿地公园核心区，湘江被中洲岛一分为二，两侧曾都是四大家鱼——青鱼、草鱼、鲢鱼、鳙鱼的洄游繁殖的通道。 上世纪，因发展需要，两侧分别建设了水电站和船闸，鱼类洄游繁殖通道受阻，鱼类也曾一度减少。2019年，当地在中洲岛中挖出 一条近1公里长的洄游通道。刚开始效果并不好，鱼类并不走这条洄游通道。 洄游的鱼怎么样抵达产卵场？这一排插入水下的立杆叫做声波引鱼装置，它相当于一个隔离带，提示鱼儿此路不通。然后把鱼儿引 导到这个专门修建的鱼道上，通过畅通的通道，抵达产卵场进行繁殖。 现在，这条洄游通道每年超10万尾鱼类洄游。在洄游通道中，还装有水下摄像头，实时监测鱼类洄游情况。与此同时，当地还建立 起无人机巡护和物联网传感监测系统， ...

Core Viewpoint - The successful rehabilitation and release of a critically injured gull, identified as 3991, highlights the importance of conservation efforts for endangered species, particularly the vulnerable gull population in Tianjin, China [1][2]. Group 1: Rehabilitation and Release - The gull 3991 was discovered on March 13, 2023, with severe injuries to its left wing and foot, and was rescued by a conservation team [1]. - After receiving careful treatment, 3991 was released on April 5, 2023, equipped with a solar-powered satellite tracker to monitor its movements [1]. Group 2: Migration and Breeding - Following its release, 3991 was tracked to a significant breeding area near Kangbao County, Hebei, indicating it may have found a mate [2]. - The Tianjin Planning and Natural Resources Bureau, in collaboration with research teams, has been studying the wintering gull population and migration patterns, fitting 40 gulls with satellite trackers over the past year [2]. Group 3: Conservation Efforts - The application of technology in monitoring gull movements has enhanced conservation efforts, allowing for timely interventions when disturbances occur, such as construction noise affecting the birds [2]. - The population of gulls wintering in Tianjin has stabilized, with over 10,000 individuals recorded annually, and their distribution range has expanded in recent years [2]. Group 4: Future Expectations - The research team is hopeful that 3991 will return in the fall with offspring, reflecting the success of conservation initiatives [3].

Core Viewpoint - The article highlights the integration of technology in the management and protection of wetland ecosystems in Tianjin, particularly focusing on the use of drones and smart monitoring systems to enhance biodiversity conservation efforts. Group 1: Technological Integration in Wetland Protection - The North Dagu Port Wetland Nature Reserve has implemented drone patrols to monitor hard-to-reach areas, allowing for comprehensive surveillance of wildlife and habitats [1] - The reserve has constructed 22 artificial nests for the endangered Oriental White Stork, equipped with monitoring devices to study their breeding activities [1] - A biodiversity monitoring system has been established, utilizing 80 high-definition cameras, 4 bird species recognition cameras, and 15 infrared cameras to collect and analyze ecological data [2] Group 2: Enhanced Monitoring and Data Analysis - The Tianjin wetlands serve as a crucial stopover for migratory birds, with various reserves leveraging technology to create a smart ecological protection network [4] - The Qilihai Wetland Nature Reserve employs drones for regular inspections, which not only respond to emergencies but also gather data on species distribution and vegetation conditions [4] - The integration of augmented reality (AR) and drone technology has improved the efficiency and accuracy of wildlife monitoring and management [5] Group 3: Collaborative Research and Future Plans - The Qilihai Wetland collaborates with research institutions to utilize bird recognition and sound monitoring technologies for studying migratory patterns and health of bird populations [7] - The upcoming migratory season will see adjustments in water levels based on drone data to facilitate feeding for various bird species [7] - The Tianjin planning and natural resources department aims to enhance the integrated monitoring system to ensure the safety and stability of migratory bird habitats [7]

Core Viewpoint - The integration of advanced technology, such as drones and AI systems, significantly enhances the monitoring and protection of migratory birds in various natural reserves across China, leading to more efficient and precise conservation efforts [6][9][11]. Group 1: Technological Advancements in Bird Conservation - The Tianjin Qilihai Wetland has implemented a comprehensive drone system that autonomously patrols the area, ensuring 24/7 coverage and reducing human intervention [6][7]. - In Hunan's Yongzhou, a network of drones, video surveillance, and AI monitoring systems has been established to protect migratory routes, showcasing a shift from traditional methods to high-tech solutions [9][10]. - The use of sound recognition technology, such as voiceprint collectors, allows for continuous and accurate monitoring of bird populations, with over 320,000 valuable bird sound data collected since the launch of the monitoring platform [11][12]. Group 2: Impact on Conservation Efficiency - The deployment of drones in the Qilihai Wetland allows for efficient coverage of 149.28 square kilometers, completing patrols in approximately 20 minutes [6][7]. - The integration of AI algorithms with surveillance systems in Yongzhou enables real-time monitoring and alerts for any illegal activities, enhancing the overall efficiency of bird protection efforts [10]. - The AI recognition system developed by Lanzhou University has achieved an accuracy rate exceeding 85% in identifying bird species from audio data, demonstrating the effectiveness of technology in wildlife research [12][13].