Crested ibises are seen perched on trees in the Beihu Marshland in Hangzhou, East China's Zhejiang province. [Photo provided to chinadaily.com.cn]

To date, a total of 263 species of birds have been found in the Beihu Marshland in Hangzhou, East China's Zhejiang province, seven of which are national first-class protected animals.

An oriental white stork stands on a rock in the Beihu Marshland in Hangzhou, East China's Zhejiang province. [Photo provided to chinadaily.com.cn]

A white crane searches for food in the Beihu Marshland in Hangzhou, East China's Zhejiang province. [Photo provided to chinadaily.com.cn]