フラミンゴ at 和歌山城・動物園　Flamingoes at Wakayama Castle zoo

フラミンゴは片足で立つことで有名ですが、また良く頭を水の中に突っ込んでいる光景を良く見ます。何を探しているのでしょうかね？

Flamingoes are famous for standing on one leg. But we often come across the scene where they plunge their heads into the pond. I wonder what they are looking for in the water?