In the nests of Goshawks have been found Red kite, Buzzard, Raven, Honey Buzzard, Hare. Goshawks do not have a fearsome reputation for nothing. Buzzards are under-estimated in some ways I do agree. This video is just one of many encounters that will happen in the wild. The Goshawk kept the Buzzard off for 2 minutes and then the buzzard jumped from above. Maybe the Goshawk was weakened previous? Maybe it had its share? There are many reasons why it gave up to the end, we will never know the truth. If the Goshawk was not a fearsome bird the 3 Ravens would have come a lot closer and maybe even displaced it. They at first keep a very respectful distance and do not get in the way of either species. The fact 3 Ravens do not try and displace a lone Goshawk tells you something about the position of the Goshawk in the ecosystem.