Aerial photo taken on Feb. 21, 2019 shows a heart-shaped island which is the habitat of various bird species at Bihu ecological park in Zhangzhou, southeast China's Fujian Province. (Xinhua/Jiang Kehong)
Waterfowl cruise on a lake at Bihu ecological park in Zhangzhou, southeast China's Fujian Province, Feb. 21, 2019. (Xinhua/Jiang Kehong)
Egrets fly over trees at Bihu ecological park in Zhangzhou, southeast China's Fujian Province, Feb. 21, 2019. (Xinhua/Jiang Kehong)
Egrets fly over trees at Bihu ecological park in Zhangzhou, southeast China's Fujian Province, Feb. 21, 2019. (Xinhua/Jiang Kehong)
