And deity said, “Let the waters swarm with a swarm of living being, and let fowl fly on the earth, on the face of the barrier of the heavens.” 21And deity created the big serpents and all living creeping being with which the waters swarmed for their kinds, and all fowl of wing for his kinds. And deity saw that good it is. 22And them deity blessed by saying, “Bear fruit. And multiply. And fill the waters in the seas. And the fowl, let it multiply in the earth.”
From the book, Genesis 1-11: A Handbook on the Hebrew Text.
Bandstra opts to render Elohim as "deity" here; he translates nepes hayya in 1:20, "living being."
Darby Bible Translation: "And God said, Let the waters swarm with swarms of living souls, and let fowl fly above the earth in the expanse of the heavens."