Genesis 7:3

and also seven of every kind of bird, male and female, to keep their various kinds alive throughout the earth.

(New International Version)

also of the birds of the sky, by sevens, male and female, to keep offspring alive on the face of all the earth.

(New American Standard Bible)

Of fowls also of the air by sevens, the male and the female; to keep seed alive upon the face of all the earth.

(King James Version)