しろはらとうぞくかもめなら
白腹盗賊鴎なら
shirohara tōzokukamomenara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of しろはらとうぞくかもめ

1. If/when it's a white-bellied skua:; When a white-bellied skua is present:

Nara Conditional
Usually Written in Kana