![](http://www.ecns.cn/hd/2023/06/08/7c5c37cf7afd4465a44477075a947ec5.jpg)
Blue-tailed bee eaters perch on a branch of a tree in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Every year from April to July, Blue-tailed bee eaters flock to Hainan for reproduction.
![](http://www.ecns.cn/hd/2023/06/08/d3d34e4f89ed4d43bf7acae01f4461d9.jpg)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
![](http://www.ecns.cn/hd/2023/06/08/8c899e07b411454c9197b61c7ea046fa.jpg)
Blue-tailed bee eaters perch on a branch of a tree in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
![](http://www.ecns.cn/hd/2023/06/08/0f07a2ef73b34378a1c7e9466365243b.jpg)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
![](http://www.ecns.cn/hd/2023/06/08/20ab32db49a040ffb39797c52b524bdd.jpg)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
![](http://www.ecns.cn/hd/2023/06/08/db5bf2a9022749c69394d673e486f691.jpg)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
![](http://www.ecns.cn/hd/2023/06/08/2e9fe4f35127495c92ce985c963c71c9.jpg)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)