A raven was a bird native to Earth, a member of the Corvidae family. It featured black feathers, a wingspan of approximately one half meter, yellow eyes and a powerful, triangular beak. (VOY: "The Raven")
When Data was experiencing his first dreams in 2369, images of ravens played an important role in his visions. In order to explore the images in a creative way, as Captain Picard suggested, Data created a number of paintings depicting ravens. Data's creator, Doctor Noonian Soong, later appeared in Data's dreams and explained that Data was the bird. (TNG: "Birthright, Part I")
- "When it looks at me, I am paralyzed. I cannot move. It seems to know me, but I don't understand how that's possible. It's merely a bird, an inferior form of life, but the sight of it fills me with fear."