Photo taken on Dec. 1, 2020 shows birds flying over the Yangon river during the sunset at Botahtaung harbour in Yangon, Myanmar. (Xinhua/U Aung)

Photo taken on Dec. 1, 2020 shows birds flying over the Yangon river during the sunset at Botahtaung harbour in Yangon, Myanmar. (Xinhua/U Aung)

Birds are silhouetted against the sun while flying over the Yangon River during the sunset at Botahtaung harbour in Yangon, Myanmar, Dec. 1, 2020. (Xinhua/U Aung)