'Mid heaven' in the Bible

And I saw, and I heard an eagle, flying in mid heaven, saying with a great voice, Woe, woe, woe, for them that dwell on the earth, by reason of the other voices of the trumpet of the three angels, who are yet to sound.

And I saw another angel flying in mid heaven, having eternal good tidings to proclaim unto them that dwell on the earth, and unto every nation and tribe and tongue and people;

And I saw an angel standing in the sun; and he cried with a loud voice, saying to all the birds that fly in mid heaven, Come and be gathered together unto the great supper of God;