とうぞくかもめであれば【
盗賊鴎であれば
】

tōzokukamomedeareba

Noun

,

Da Copula

The "-eba" conditional form ("if/when…") of とうぞくかもめ

1. If [it] were a thief gull; If [it] were to be a thief gull

Ba Conditional

,

Usually Written in Kana