Genesis 8:6-10

After another forty days, Noah opened the window he had made in the boat and released a raven. The bird flew back and forth until the floodwaters on the earth had dried up. He also released a dove to see if the water had receded and it could find dry ground. But the dove could find no place to land because the water still covered the ground. So it returned to the boat, and Noah held out his hand and drew the dove back inside. After waiting another seven days, Noah released the dove again.