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A flock of Asian openbill storks fly in the sky above Marina Bay in Singapore on Dec. 31, 2019. Hundreds of Asian openbill storks were spotted in Singapore in December. (Xinhua/Then Chih Wey)
A flock of Asian openbill storks fly in the sky above Marina Bay in Singapore on Dec. 31, 2019. Hundreds of Asian openbill storks were spotted in Singapore in December. (Xinhua/Then Chih Wey)