GANGNEUNG, Dec. 21 (Yonhap) -- Grey herons burrow their faces into their chests, to avoid freezing cold, at Namdaecheon in Gangneung City, Gangwon Province on Dec. 21, 2021
by Yoo Hyung-jae
[Yoo Hyung-jae, who took this picture, is a photo reporter at Yonhap News Agency who specializes in the ecological field.]
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