raven
The raven and the dove have been thought to stand for the believer's two natures: the "old man" satisfied with a world under judgment; the "new man" finding satisfaction only in the things of the new creation.
Related Commentaries of Genesis 8:7
Genesis 8:7
7 And he sent forth a raven, which went forth toc and fro, until the waters were dried up from off the earth.