What does Ezekiel 39:17 mean?

Then the Lord God says: Call out to every kind of bird and wild animal, 'Come together from everywhere for a huge feast! Come eat the flesh and drink the blood of the mighty, of rulers, of rams, lambs, goats, and bulls—all the best from Bashan.' Ezekiel 39:17 - Modern Text Bible

(God invites the animals to feast on the fallen armies, a vivid image of total defeat and judgment.)