まつぎひわじゃなかったです
松木鶸じゃなかったです
matsugihiwajanakattadesu

Noun
Desu Copula

The polite, past negative form of まつのきひわ

1. Wasn't pine.; Wasn't a warbler.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana