【天鹅也有“身份证” 科学助力共同保护“白色精灵”】春回大地，万物复苏。位于新疆昌吉回族自治州的玛纳斯国家湿地公园内，一群去年秋冬迁徙来此的大天鹅，正准备启程飞往北方。为了更好地了解它们的迁徙之路，来自全国鸟类环志中心的科研人员来到湿地公园，为越冬的大天鹅开展环志工作，佩戴颈环和卫星发射器。佩戴颈环时需要遮住天鹅的眼睛并且用手扶住，避免使其受到惊吓。颈环上面有阿拉伯数字，是天鹅唯一的“身份证号”。发射器则可以每隔一小时，发送天鹅所在的实时位置，方便科研人员了解天鹅迁徙、生活的特点。再通过大数据分析和整理，获得天鹅的生物学和生态学的信息。As warmer weather arrives, hundreds of swans that spent winter at Manas National Wetland Park in northwest China's Xinjiang Uygur Autonomous Region are ready to head north for nesting and reproduction. Researchers across China helped the local staff place bands on the swans' necks. Bird banding is a common practice for studying and identifying individual birds. Neck rings and mini satellite transmitters attached to the swans allow researchers to monitor the birds' migratory journeys.