おううみがらすじゃなかったです
大海烏じゃなかったです
ō umigarasujanakattadesu

Noun
Desu Copula

The polite, past negative form of おおうみがらす

1. Wasn't a cormorant.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana