John Wesley on Isaiah 14:23

Bittern - A great water fowl, which delights in solitary places, as also in watery grounds. Such as those were about Babylon. Pools - The ground about Babylon was of itself very moist, because of the great river Euphrates, running by it, which was kept from overflowing the country with charge and labour; this being neglected, when the city was destroyed, it was easily turned into pools of water.