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A quick way to tell Ravens from Crows is to notice their bills. Ravens are larger birds and have much larger bills than Crows. Typically, I see Crows more often in flocks where Ravens are more solitary. When they fly overhead, Crow's tails looked squared off on the end whereas Raven's are rounder and form a fan shape. However, as Crows come in to land, they can flair their tails in a fan shape like a Raven's as they use it for a rudder and brake. You also might see several Crows chasing a single Raven on the wing, where you can really see the size difference.
| American Crow |
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| smaller less heavy bill |
| Common Raven |
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| Thicker heavier bill |
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