Guardians of wetland in ice and snow in China's Heilongjiang
2023-02-09 16:15:01 来源：新华社
HARBIN, Feb. 9 (Xinhua) -- In China's northernmost Heilongjiang Province, a group of rangers have been braving the freezing weather to protect birds and carnivores living in Dongfanghong Wetland National Nature Reserve.
