さよなきどりじゃないです
小夜鳴き鳥じゃないです
sayona kidorijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of さよなきどり

1. Not a nightingale.; Not a night-singing bird.

Negative
Polite
Casual Register
Usually Written in Kana