Growing up in Davis, CA, there were Magpies that would grab walnuts, drop them in the street, and wait for a car to pass and crush the nut's shell. When the coa

Growing up in Davis, CA, there were Magpies that would grab walnuts, drop them in the street, and wait for a car to pass and crush the nut's shell. When the coast was clear, the Magpie would fly over and grab the freshly-cracked nut.