ギータのスイングを真似てるのはどちらでしょう？

Which penguin is imitating Giita's swing? [tn]Giita is Yanagita Yuuki's nickname.
[tn]
Answer: [spoilers]The left (Adelie). The right (Rockhopper) is imitating Yoshida Masataka's.[/spoilers]
(twitter #1248226121394450432)
[/tn]