A striated heron is struggling to swallow a big fish it caught at a stream in Gangwon-do on June 29, 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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