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

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

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

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