High Quality Content by WIKIPEDIA articles! In Danish folklore, a valravn is a supernatural raven. The raven appears in traditional Danish folksongs, where they are described as originating from ravens who consume the bodies of the dead on the battlefield, as capable of turning into the form of a knight after consuming the heart of a child, and, alternately, as half-wolf and half-raven creatures.According to Danish folklore recorded in the late 1800s, when a king or chieftain was killed in battle and not found and buried, ravens came and ate him. The ravens became valravne. The valravn that ate the king's heart gained human knowledge and could perform great malicious acts, could lead people astray, had superhuman powers, and were "terrible animals".