YOU SAID:

Everyone thinks chickens are birds but they are chickens

INTO JAPANESE

誰もがニワトリは鳥だと思っているが、彼らはニワトリだ

BACK INTO ENGLISH

Everyone thinks chickens are birds, but they are chickens.

INTO JAPANESE

誰もがニワトリは鳥だと思っていますが、彼らはニワトリです。

BACK INTO ENGLISH

Everyone thinks chickens are birds, but they are chickens.