I’m not 100% certain what bird of prey this is. I had thought it was a Buzzard, but the wing tips aren’t held out like ‘fingers’ in quite the same way.
I’ve lightened the photos to see a bit more of the colouring, and it is looking quite Buzzard-like, although it was quite a distance away which made identification a little more challenging!
The other thing that makes me wonder if it was actually a buzzard was the way it flew – most of the ones I’ve seen before just soar, with hardly any wing flapping. This one however seemed to flap its wings a little more frequently.