くちばしくろびたきだったら
嘴黒鶲だったら
kuchibashikurobitakidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of はしぐろひたき

1. If/when it were a warbler…; If/when it’s a warbler…

Tara Conditional
Usually Written in Kana