The Raven: They display ability in problem solving, as well as other cognitive processes such as imitation and insight, are among the most playful of bird species. The Raven has been the subject of mythology, folklore, art, and literature, and In many indigenous cultures, the Common Raven has been revered as a spiritual figure or god.
Saw many crows on my recent visit to Amsterdam: "The crow is a spirit animal associated with life mysteries and magic. The power of this bird as totem and spirit guide is provide insight and means of supporting intentions. " spiritanimal.info
"Some people believe that ravens guide travelers to their destinations. Others believe that the sight of a solitary raven is considered good luck. While a group of ravens predicts trouble ahead. And a raven right before battle promises victory."
Shakespeare uses various symbols to develop themes. The theme 'supernatural,' has various animal symbols. A great example of this is before Duncan's arrival at the castle, Lady Macbeth says; "The raven himself is hoarse/ That croaks the fatal entrance of Duncan." The raven represents death and ill fate and the fact that it is at the castle just before Duncan is murdered is Shakespeare's way of saying there are supernatural forces playing roles in our lives.