Genesis 1:20

And God said, Let the waters bring forth abundantly the moving creature that hath life, and fowl that may fly above the earth in the open firmament of heaven. At God's almighty word the waters were to swarm a swarm of living beings, of marine animals, and also of winged animals, characterized by the fact that they fly over the earth on the face of the firmament, that is, on the side which is turned toward the earth. These animals were created in great abundance and are conspicuous to this day by their unusually great number, as careful statistics have shown.