Read Genesis 8:11 Using Other Translations
And the dove came in to him in the evening; and, lo, in her mouth was an olive leaf pluckt off: so Noah knew that the waters were abated from off the earth.
And the dove came back to him in the evening, and behold, in her mouth was a freshly plucked olive leaf. So Noah knew that the waters had subsided from the earth.
This time the dove returned to him in the evening with a fresh olive leaf in its beak. Then Noah knew that the floodwaters were almost gone.