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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