Originally Posted by MisterMcCool
I've seen them on the side of the road and when a vehicle approached, they would all shout "CAR."
LOL! Yup. I have seen that too.
I have watched crows place things in the road to get cars to run them over to open them up (bones, nuts, even packages of food they couldn't open) and when the tires of the cars don't hit the item they will fly down and move it into a better position.
The ones that have been observed using tools are Catalonian Crows, but I think that they are all really smart.