A black-tailed crane lives in the center of the Hue forest in the Caohai National Nature Reserve in Guizhou province (December 1, taken with a drone). The Caohai National Nature Reserve in Guizhou province has recently reached its peak winter season for black-tailed cranes, a nationally protected animal.我们与沙丘鹤和大雁等其他鸟类一起，重建了数以万计的鸟类的生态。新华社记者 杨文斌 供图
（编辑：劳春雨）