Revelation 19:17
And I saw an angel standing in the sun; and he cried with a loud voice, saying to all the birds that fly in the midst of heaven, Come, and gather yourselves together to the great supper of God,
Revelation 19:21
And the rest were slain by the sword of him that sat upon the horse, which went forth out of his mouth; and all the birds were satisfied with their flesh.
Revelation 8:13
and the night likewise, And I saw and heard an angel flying in the midst of heaven, saying with a loud voice, Wo, wo, wo to the inhabitants of the earth, by reason of the other voices of the trumpets of the three angels who are yet to sound.
Revelation 14:6
And I saw another angel flying in the midst of heaven, having an everlasting gospel to preach to them that dwell on the earth, and to every nation,