あたまくろかぶろこうのとりじゃなかったです
頭黒禿鸛じゃなかったです
atamakurokaburo kōnotorijanakattadesu

Noun
Desu Copula

The polite, past negative form of すぐろはげこう

1. Wasn't a black-headed stork.; Wasn't a foolish person.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana