![A macaw parrot practices free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)](http://www.ecns.cn/hd/2018/07/30/1da4ea5cb6034bffb88e1f1cad995b94.jpg)
A macaw parrot practices free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)
![Macaw parrots practice free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)](http://www.ecns.cn/hd/2018/07/30/995fa8542aa54a29b758c3c1f6ff4864.jpg)
Macaw parrots practice free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)
![Macaw parrots practice free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)](http://www.ecns.cn/hd/2018/07/30/ecf6940aeae7480bb30e8241cc7fce19.jpg)
Macaw parrots practice free fly at Bumi Serpong Damai district, South Tangerang in Indonesia, July 29, 2018. (Xinhua/Veri Sanovri)