Flock of Seagulls are flying over the Namdaecheon Stream in Gangneung-si, Gangwon-do on Feb. 4, 2022. (Yonhap)

Photos by Yoo Hyung-jae

[Yoo Hyung-jae, who took these pictures, is a photo reporter at Yonhap News Agency who specializes in the ecological field.]

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