LXX Gen 8:11

καὶ ἀνέστρεψεν πρὸς αὐτὸν ἡ πεπιστερὰ τὸ πρὸς ἑσπέραν, καὶ εἶχεν φύλλον ἐλαίας κάρΦος ἐν τῷ στόματι αὐτῆς· καὶ ἔγνω Νῶε ὅτι κεκόπακεν τὸ ὕδωρ ἀπὸ τῆς γῆς.

And behold, the dove returned to him in the evening with a freshly plucked olive leaf in her beak. So Noah knew that the waters had receded from the earth.