Crows in Japan are definitely quite intelligent. They'll use traffic to crack open nuts by dropping them in front of traffic lights. After a car runs over them,

Crows in Japan are definitely quite intelligent. They'll use traffic to crack open nuts by dropping them in front of traffic lights. After a car runs over them, they'll wait for the red light and then retrieve the now cracked open nut[1]. [1] https://www.youtube.com/watch?v=BGPGknpq3e0 https://www.youtube.com/watch?v=BGPGknpq3e0