えぞらいちょうでしょう
蝦夷雷鳥でしょう
ezo raichōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of えぞらいちょう

1. Probably a ptarmigan.

Polite
Presumptive
Conjecture
Usually Written in Kana