しろせきれいじゃなかったです
白鶺鴒じゃなかったです
shiro sekireijanakattadesu

Noun
Desu Copula

The polite, past negative form of はくせきれい

1. Wasn't a wagtail.; Wasn't a gray wagtail.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana