CGTN Nature filming crew spotted some Chinese mergansers in loving pairs in the Heihe section of the Toudao Songhua River, which flows from Changbai Mountain.

As breeding season approaches, the Chinese mergansers, an endangered species under first-class state protection in China, are preparing for the most important time of the year. 

There are less than 5,000 Chinese mergansers left in the wild globally.

(Cover image via VCG)

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