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BirdWatching Daily on MSNThe Smartest Birds in the World (And What Makes Them So Clever)We have all seen YouTube videos of birds doing something clever, from displacing water, to using tools to extract a treat.
While both birds belong to the Corvidae family, ravens are larger than crows, measuring around 24 to 27 inches (61—69 cm) in length compared to the 17 to 21 inches (43—53 cm) of crows.
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