Genesis 8:8-11

8Then he sent out a dove to see whether the water on the earth’s surface had gone down,

9but the dove found no resting place for its foot. It returned to him in the ark because water covered the surface of the whole earth. He reached out and brought it into the ark to himself.

10So Noah waited seven more days and sent out the dove from the ark again.

11When the dove came to him at evening, there was a plucked olive leaf in its beak. So Noah knew that the water on the earth’s surface had gone down.