'Beasts of the Field' in the Bible

Is my heritage unto me as a speckled bird of prey? are the birds of prey against her round about? go ye, assemble all the beasts of the field, bring them to devour.

And now have I given all these lands into the hand of Nebuchadnezzar the king of Babylon, my servant; and the beasts of the field also have I given him to serve him.

For thus saith Jehovah of hosts, the God of Israel: I have put a yoke of iron upon the neck of all these nations, that they may served Nebuchadnezzar king of Babylon; and they shall serve him: and I have given him the beasts of the field also.