He Xiaoan observes birds with telescope in Wolong National Nature Reserve, southwest China's Sichuan Province, March 23, 2022. (Xinhua/Liu Kun)

CHENGDU, April 1, 2022  -- He Xiaoan, 55, a staff in the Wolong National Nature Reserve, is also a bird watcher observing the species, habits and traces of birds here. Many of the photos he took on the 293 species of birds in Wolong have become valuable reference for the study of bird diversity.

He hopes to inspire people with videos and photos he took to participate in the protection work of ecological environment and biodiversity of nature reserves.