しろはらとうぞくかもめでしょう
白腹盗賊鴎でしょう
shirohara tōzokukamomedeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of しろはらとうぞくかもめ

1. Probably a white-bellied thief gull.

Polite
Presumptive
Conjecture
Usually Written in Kana