えらぶだいこうもりだったら
永良部大蝙蝠だったら
erabu daikōmoridattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of えらぶおおこうもり

1. If/When it were a Ryukyu flying fox

Tara Conditional
Usually Written in Kana