Aerial photo taken on April 19, 2022 shows herons in a mangrove forest in Jiangjing Township of Fuqing, southeast China's Fujian Province. (Xinhua/Jiang Kehong)

　　Aerial photo taken on April 19, 2022 shows herons in a mangrove forest in Jiangjing Township of Fuqing, southeast China's Fujian Province. (Xinhua/Jiang Kehong)

　　Aerial photo taken on April 19, 2022 shows herons in a mangrove forest in Jiangjing Township of Fuqing, southeast China's Fujian Province. (Xinhua/Jiang Kehong)

　　A night heron is seen in a mangrove forest in Jiangjing Township of Fuqing, southeast China's Fujian Province, April 19, 2022. (Xinhua/Jiang Kehong)

　　Aerial photo taken on April 19, 2022 shows herons in a mangrove forest in Jiangjing Township of Fuqing, southeast China's Fujian Province. (Xinhua/Jiang Kehong)