THE SCENE: Leading the army of the Byzantine emperor, Harald Hardrada (the “Last Viking”) lays siege to a mighty fortress in Sicily. Sensing he will not be able to storm it by force, Harald devises a more cunning – and chilling – scheme to gain a victory.
THE ACTION: “Then Harald hit upon an expedient. He made his bird-catchers catch the small birds which had their nests within the castle, but flew into the woods by day to get food for their young. He had small splinters of tarred wood bound upon the backs of the birds, smeared these over with wax and sulphur, and set fire to them. As soon as the birds were let loose they all flew at once to the castle to their young, and to their nests, which they had under the house roofs that were covered with reeds or straw. The fire from the birds seized upon the house roofs; and although each bird could only carry a small burden of fire, yet all at once there was a mighty flame, caused by so many birds carrying fire with them and spreading it widely among the house roofs. Thus one house after the other was set on fire, until the castle itself was in flames. Then the people came out of the castle and begged for mercy; the same men who for many days had set at defiance the Greek army and its leader. Harald granted life and safety to all who asked quarter, and made himself master of the place.”
– The Heimskringla, Snorri Sturluson, 13th Century AD
