うみおうむじゃなかったです
海鸚鵡じゃなかったです
umiōmujanakattadesu

Noun
Desu Copula

The polite, past negative form of うみおうむ

1. Was not a puffin.; Wasn't a puffin.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana