あたまくろけいかんけりじゃなかったです
頭黒鶏冠鳧じゃなかったです
atamakurokeikankerijanakattadesu

Noun
Desu Copula

The polite, past negative form of ずぐろとさかげり

1. Wasn't a black-headed chicken with a duck's crest.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana