A blue-tailed bee eater is seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
Blue-tailed bee eaters are seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
Blue-tailed bee eaters are seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
Blue-tailed bee eaters are seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
A blue-tailed bee eater is seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
A blue-tailed bee eater is seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)
A blue-tailed bee eater is seen in Haikou, south China's Hainan Province, May 14, 2019. According to statistics from Haikou Duotan Wetlands Institute, nearly 200 blue-tailed bee eaters reside in Haikou. (Xinhua/Yang Guanyu)