I've never seen a raven's nest close up. That is an ambition of mine. (By the way, on the Alaska tundra where there are no trees ravens make their nests on the ground. Now that is something I would like to see.)
There have been many studies made of the raven that establish its intelligence but the main reason I prefer the raven to the eagle is its spirit. The eagle is lordly and self-focused; the raven is having a delightful time.