すすいろあほうどりでしょう
煤色信天翁でしょう
susuiroahōdorideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of すすいろあほうどり

1. Probably a sooty shearwater.

Polite
Presumptive
Conjecture
Usually Written in Kana