I highly recommend this PBS special largely dealing with the intelligence of crows: https://www.pbs.org/wnet/nature/a-murder-of-crows-introduction/5838/ https:/

I highly recommend this PBS special largely dealing with the intelligence of crows: https://www.pbs.org/wnet/nature/a-murder-of-crows-introduction/5838/ https://www.pbs.org/wnet/nature/a-murder-of-crows-introducti... They might have had some other specials too, but in one they show them completing complicated multi-step challenges using tools to get food.