Wild beasts of the islands - Jackals.
Owls - Ostriches (marginal reference note).
Related Commentaries of Jeremiah 50:39
Jeremiah 50:39
39 Therefore the wild beasts of the desert with the wild beasts of the islands shall dwell there, and the owls shall dwell therein: and it shall be no more inhabited for ever; neither shall it be dwelt in from generation to generation.