Here’s another example of crows doing some problem-solving, this time in Japan:
 

 
Corvids are known from other observations and experiments to be smart, so this level of problem-solving wouldn’t seem to be beyond them, but it’s always good to maintain a bit of skepticism. There may be confirmation bias at work here: there’s a population of crows in this city in Japan, dropping nuts at various places, and we notice and marvel at the ones that happen to do so at intersections, and not so much at the others. A quick search of recent journal articles didn’t reveal anything about it (well, I did find one book, but it just cited the Attenborough special); still, if the behavior here is observed repeatedly, and if, as some reports have it, they’ve been observed moving the nuts to a different location if the cars miss them, it’s probably reasonable to conclude that the purported learning is real.

The PBS companion site to the Attenborough special has a good introduction to this and other commonly known examples of avian intelligence.

Tags: Saturday Birds