Black-necked cranes are pictured at Yunnan Dashanbao National Nature Reserve for Black-necked Cranes in Zhaotong, southwest China's Yunnan Province, Dec. 11, 2022.Every year, once the black-necked cranes flock to the reserve during their migration, Chen spends hours every day feeding the birds, observing their activities and patrolling. "I regard black-necked cranes as my family," said Chen Guanghui.