Escorted off the premises

I was up on Blackford Hill watching the Rooks going about their normal daily noisy routines when a buzzard flew in at low level close to the rookery. There was no big panic from the Rooks but a couple of Rooks appeared and gently but firmly and with much kaakarring! escorted the Buzzard from the vicinity. Of course the Buzzard was not happy judging by the amount of mewing it was making but at such a low level it did not have much choice however at a higher altitude it may have been a different story.