A raven in Austria has astounded scientists with his amazing intelligence and creativity. Here, four year old Ellias demonstrates his cunning through an elaborate game of strategy to protect his food. Subscribe: http://bit.ly/BBCEarthSub Taken from Extraordinary Animals Series 2. WATCH MORE: New on Earth: https://bit.ly/2M3La96 Oceanscapes: https://bit.ly/2Hmd2kZ Wild Thailand: https://bit.ly