Are crows getting smarter?

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The American Crow (and its cousin the Common Raven) are very intelligent birds. The American Crow is one of the most adaptable bird species.

I'm certain they have learned to avoid cars by simply moving off the road rather than flying away, as they are capable of learning to solve fairly complex problems. They know that cars simply pass. Cars generally aren't trying to hit them and they typically travel in predictable, straight paths. So, the crows know that they can get out of the way and wait until the cars pass before resuming feeding on whatever they have found in the roadway.

This conserves valuable energy the crow needs to survive, especially in colder times of year. It's expensive physiologically to keep flying away every time. If the cars don't generally hit crows, then it's not necessary to expend more energy than is necessary to avoid being hit.

The following article contains some interesting research on crow behavior and learning:

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