きそくはいくろかもめだったら
黄足背黒鴎だったら
kisokuhaikurokamomedattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of きあしせぐろかもめ

1. If it were a yellow-footed gull with a black-backed gull…

Tara Conditional
Usually Written in Kana