はしぶとからすでしょう
嘴太鴉でしょう
wa shibutokarasudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of はしぶとがらす

1. Probably…; ; It will likely be…; ; Perhaps…

Polite
Presumptive
Conjecture
Usually Written in Kana