XLII But Attila took occasion from the withdrawal 219 of the Visigoths, observing what he had often desired that his enemies were divided. At length feeling secure, he moved forward his array to attack the Romans. As his first move he besieged the city of Aquileia, the metropolis of Venetia, which is situated on a point or tongue of land by the Adriatic Sea. On the eastern side its walls are washed by the river Natissa, flowing from Mount Piccis. The siege was long and fierce, but of no avail, 220 since the bravest soldiers of the Romans withstood him from within. At last his army was discontented and eager to withdraw. Attila chanced to be walking around the walls, considering whether to break camp or delay longer, and noticed that the white birds, namely, the storks, who build their nests in the gables of houses, were bearing their young from the city and, contrary to their custom, were carrying them out into the country. Being 221 a shrewd observer of events, he understood this and said to his soldiers: "You see the birds foresee the future. They are leaving the city sure to perish and are forsaking strongholds doomed to fall by reason of imminent peril. Do not think this a meaningless or uncertain sign; fear, arising from the things they foresee, has changed their custom." Why say more? He inflamed the hearts of his soldiers to attack Aquileia again. Constructing battering rams and bringing to bear all manner of engines of war, they quickly forced their way into the city, laid it waste, divided the spoil and so cruelly devastated it as scarcely to leave a trace to be seen. Then growing bolder 222 and still thirsting for Roman blood, the Huns raged madly through the remaining cities of the Veneti. They also laid waste Mediolanum, the metropolis of Liguria, once an imperial city, and gave over Ticinum to a like fate. Then they destroyed the neighboring country in their frenzy and demolished almost the whole of Italy. [Sidenote: POPE LEO INTERVENES TO SAVE ROME 452]