This is what I find most fascinating. That crows are capable of gossip, organization, planning and execution.

"you know that dude that lives by the water? protect him he feeds us."

"you know the big guy that walks his dog and barks at us? we found out where he lives."

I've seen crows execute their own (seriously). They would crowd and walk him over the edge and when he fell they would just attack him.

I've seen crows leave gifts behind for feeding them regularly.

I've seen crows protect our property from raccoons and squirrels.

I've seen crows remember people and harass them (even when they moved to another city!)