Then Gangleri said: ‘From where comes the wind? It is so strong that it whips the great oceans and stirs up fire. But as strong as it is, no one can see it, so wondrously is it made.’
High said, ‘I can easily tell you that. At the far northern end of heaven sits a giant named Hraesvelg [Corpse Gulper]. He has the shape of an eagle, and when he beats his wings to take flight, the winds blow out from under them. As is said here:
Hraesvelg, he is called, who sits at heaven’s end, a giant in eagle’s shape. From his wings, it is said, the winds blow over all men.’
(The Sibyl’s Prophecy. 37)