Great creatures that would construct a tool for a purpose surprising more than one with their intelligence. As others in the wild life ravens have disputes without keeping manners, perhaps with range in mind. And they show memory, enough to remind individual faces during years and associating each one with a behavior. So, if some was rude then the raven will remember it or who gives aliments.
Not very confident, a raven doesn't usually permit to break within a space before placing some distance. It's then smart because all security measures are scarce when random behaviors are taken into account.
Some reach four decades or more, so it's a long life for a bird of its size. Also curious how they store food and try to acquire from others' buttery without consent. A couple raises his newborns during approximately three months, with stable relationships.