Translation of "Omened" in Japanese

Don't say such ill-omened things.

縁起の悪いことを言いなさんな。

A creepy cry that sounds like a human voice, velvet black wings, the image of tearing into dead flesh; crows are known across the world as an ill-omened bird that flies down with ill-luck.

ひとの声に似た不気味な鳴き声、漆黒の羽、死肉を啄む姿などから、鴉は不幸に舞い降りる不吉な鳥として世界に知られています。