Migrant birds seen in China's Heilongjiang

An oriental white stork tends to its chicks at a wetland in Qiqihar, northeast China's Heilongjiang Province, May 19, 2026. (Photo by Wang Yonggang/Xinhua)

A drone photo taken on May 20, 2026 shows egrets tending to their chicks at a wetland park in Shuangyashan, northeast China's Heilongjiang Province. (Photo by Han Yang/Xinhua)

An oriental white stork tends to its chicks at a wetland in Qiqihar, northeast China's Heilongjiang Province, May 19, 2026. (Photo by Wang Yonggang/Xinhua)

A drone photo taken on May 20, 2026 shows Eurasian spoonbills and grey herons tending to their chicks at a wetland park in Shuangyashan, northeast China's Heilongjiang Province. (Photo by Han Yang/Xinhua)

A drone photo taken on May 19, 2026 shows an egret tending to its chicks at a national nature reserve in Tongjiang, northeast China's Heilongjiang Province. (Photo by Liu Wanping/Xinhua)

A drone photo taken on May 20, 2026 shows an oriental white stork tending to its chicks at a national nature reserve in Tongjiang, northeast China's Heilongjiang Province. (Photo by Liu Wanping/Xinhua)

An oriental white stork tends to its chicks at a wetland in Qiqihar, northeast China's Heilongjiang Province, May 12, 2026. (Photo by Wang Yonggang/Xinhua)

A drone photo taken on May 19, 2026 shows a grey heron tending to its chicks at a national nature reserve in Tongjiang, northeast China's Heilongjiang Province. (Photo by Liu Wanping/Xinhua)

A drone photo taken on May 20, 2026 shows an oriental white stork tending to its chicks at a national nature reserve in Fujin, northeast China's Heilongjiang Province. (Photo by Qu Yubao/Xinhua)

A drone photo taken on May 19, 2026 shows Eurasian spoonbills tending to their chicks at a scenic spot in Zhaodong, northeast China's Heilongjiang Province. (Photo by Liu Dapeng/Xinhua)

A drone photo taken on May 10, 2026 shows an oriental white stork tending to its chicks at a wetland in Daqing, northeast China's Heilongjiang Province. (Photo by Zhang Shu/Xinhua)

A drone photo taken on May 20, 2026 shows an oriental white stork tending to its chicks at a national nature reserve in Fujin, northeast China's Heilongjiang Province. (Photo by Qu Yubao/Xinhua)

A drone photo taken on May 19, 2026 shows Eurasian spoonbills tending to their chicks at a scenic spot in Zhaodong, northeast China's Heilongjiang Province. (Photo by Liu Dapeng/Xinhua)

A drone photo taken on May 19, 2026 shows egrets tending to their chicks at a national nature reserve in Tongjiang, northeast China's Heilongjiang Province. (Photo by Liu Wanping/Xinhua)

A drone photo taken on May 19, 2026 shows an oriental white stork and cormorants tending to their chicks at a scenic spot in Zhaodong, northeast China's Heilongjiang Province. (Photo by Liu Dapeng/Xinhua)

An oriental white stork tends to its chicks at a wetland in Daqing, northeast China's Heilongjiang Province, May 10, 2026. (Photo by Zhang Shu/Xinhua)

An oriental white stork tends to its chicks at a wetland in Daqing, northeast China's Heilongjiang Province, May 10, 2026. (Photo by Zhang Shu/Xinhua)