そうげんらいちょうじゃなかったです
草原雷鳥じゃなかったです
sōgenraichōjanakattadesu

Noun
Desu Copula

The polite, past negative form of そうげんらいちょう

1. Was not a rock ptarmigan.; Wasn't a rock ptarmigan.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana