In reply to Bottom Clinger:
I've just come back from a short, evening run (Lake District) and at one point I was running down a farm track and noticed a load of feathers across the path. A couple of strides further along I saw the body of the (freshly killed) pigeon and came to a sudden halt right next to the carcass when I realised that the Sparrowhawk was still busy pulling its prey to pieces. I literally could have tapped the Sparrowhawk on the head with my foot! I looked down at the Sparrowhawk, and it looked up at me - seemingly not that bothered. "Hello" I said softly, then it took off unhurriedly and flew gently over a nearby wall and out of sight.
That is - by a long way - the closest that I've ever been to a Sparrowhawk. Magical.