In Norse mythology, the power to understand the language of the birds was a sign of great wisdom. The god Odin had two ravens, called Hugin and Munin, who flew around the world and told Odin what happened among mortal men.
The legendary king of Sweden Dag the wise was so wise that he could understand what birds said. He had a tame house sparrow which flew around and brought back news to him. Once, a farmer in Reidgotaland killed Dag's sparrow, which brought on a terrible retribution from the Swedes.
The ability could also be acquired by tasting dragon blood. According to the Poetic Edda and the Volsunga saga, Sigurd accidentally tasted dragon blood while roasting the heart of Fafnir. This gave him the ability to understand the language of birds, and his life was saved as the birds were discussing Regin's plans to kill Sigurd. Through the same ability Aslaug, Sigurd's daughter, found out the betrothment of her husband Ragnar Lodbrok, to another woman.
Odin is a god of war, appearing throughout Norse myth as the bringer of victory. In the Norse sagas, Odin sometimes acts as the instigator of wars, and is said to have been able to start wars by simply throwing down his spear Gungnir, and/or sending his valkaries, to influence the battle toward the end that he desires. The Valkyries are Odin's beautiful battle maidens that went out to the fields of war to select and collect the worthy men who died in battle to come and sit at Odin's table in Valhalla, feasting and battling until they had to fight in the final battle, Ragnarok. Odin would also appear on the battle-field, sitting upon his eight-legged horse Sleipnir, with his two ravens, one on each shoulder, Hugin (thought) and Munin (memory), and two wolves (Geri and Freki) on each side of him.
Odin is also associated with trickery, cunning, and deception. Most sagas have tales of Odin using his cunning to overcome adversaries and achieve his goals, such as swindling the blood of Kvasir from the dwarves.