This crow is a laff riot. What we have here is actually a distinct subcategory of playfulness known, where I come from at least, as Cruisin' For A Bruisin'. It has been clinically linked to boredom. But the final and most conclusive bit of data comes from a monograph by K. E. L. Simmons published in the Journal of Zoology , out of London. Altogether strange behavior, and especially notorious for it are the corvids.
Crows avidly rub their bodies with squashed ants.
They wallow amid busy ant colonies and let themselves become acrawl. They revel in formication. But Simmons cites several other researchers who have independently reached a different conclusion. You know the pattern. High intelligence, large promise.