Black Swan Events
Recently, the outdoor groups in Lanzhou have been heated up by three black swans that came to the Yellow River in Lanzhou. Many friends have gone to take a look.
There are many migratory bird species arriving in Lanzhou every year, but the appearance of black swans is the first time, and there are three black swans. They basically stay together and are mostly in a fixed location, which is convenient for people to visit…
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