Located in northeast China's Liaoning Province, the harbor city of Dandong welcomes flocks of different migratory birds every spring. 

The improved environment of the wetland in the Yalu River basin has attracted more birds to forage and thrive, thus prompting more visitors to want to take a glance and capture some astonishing photos. Hoping to protect these birds, some bird lovers begin to urge people to watch birds without harm.

One photographer noted that keeping a distance from the birds is very essential. The photographer condemns those who purposely frighten the birds in order to capture photos of them flying away.

(Cover image via VCG)

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