They've got the full episode of A Murder of Crows up. It's absolutely fascinating. I remember reading in Bernd Heinrich's Mind of the Raven about how excited he was when he put food on a string and the raven figured it out and pulled it up right away. Tests have gone past that--this has a bit where the researcher puts one tool on a string and the crow has to pull that up and take it off in order to reach another tool which can then be used to reach the food.
Also, there's a lot on facial recognition and on crows teaching their young. Take a look:
A Murder of Crows ~ Full Episode | Nature
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