Ravens belong to the corvid family, which are well known for their intelligence. Like other corvids, ravens can mimic sounds from their environment, including human speech. They have a wide range of vocalizations. Ravens are acrobatic fliers, frequently seen making rolls and somersaults in the air. They can be distinguished from crows in flight by their tail shape – ravens have a ‘v’ shaped tail, while crows’ tails appear straight across or slightly rounded. Ravens are also roughly double the size of crows.