An interesting article in the September/October issue of Colorado Outdoors magazine compares the two birds and describes some of the ways their intelligence has been studied and observed. The bill of a raven is also larger. However, most ravens are more intelligent than most crows. Ravens have pointed wings and wedge-shaped tails but crows hav… Crows tend to fluff their feathers into a mane and when a raven fluffs up its breast it looks ragged.The tails are also prominently different and this can be seen clearly when these birds are flying. As far as animals go, both are very smart. Ravens in particular have very good problem solving and tool using abilities. When in flight their necks appear longer than that of a crow. So they are longer, weigh more and have greater wingspan. There’s evidence to suggest that Ravens are better at pure intelligence-based problem solving, while Crows perform better when there’s a social element to the task (like facial recognition, and deciding who to trust). Crows & Ravens are both extremely intelligent, but there seems to be subtle differences between how that intelligence manifests. Ravens are larger than crows. (However, ravens will often travel in pairs while crows are more likely to be in larger groups, known as “murders.”) And they are both among the world’s smartest animals.