Tibetannet

LHASA, April 1 (Xinhua) -- April 1 marks International Bird Day.

Southwest China's Tibet is home to one of the most pristine natural environments on earth and a paradise for birds.

Tibet has seen a steady increase in endangered wildlife population, thanks to its continuous efforts over the past decades. The population of black-necked cranes has exceeded 10,000 from 1,000 to 3,000 previously.

So far, Tibet has built 47 nature reserves covering a total area of about 412,200 square km, which accounts for more than one-third of the region's total area.

Black-necked cranes fly in Namling County of Xigaze City, southwest China's Tibet Autonomous Region, March 29, 2022. (Xinhua/Zhang Rufeng)

Black-necked cranes are seen at Lhunzhub County of Lhasa, southwest China's Tibet Autonomous Region, Dec. 7, 2021. (Xinhua/Zhang Rufeng)

Black-necked cranes are pictured in Namling County of Xigaze City, southwest China's Tibet Autonomous Region, March 29, 2022. (Xinhua/Zhang Rufeng)

A Himalayan Monal is pictured in Shannan City of southwest China's Tibet Autonomous Region, March 2022. (Photo by Ningjing Wang/Xinhua)

Black-necked cranes fly in Lhunzhub County of Lhasa, southwest China's Tibet Autonomous Region, Jan. 8, 2022. (Xinhua/Zhang Rufeng)