While working on the computer in the attic room, heard a peregrine and looked up to see it flying across my view chasing a bird nearly as big as itself which I was not able to identify.
I srabbled the Velux window open get a better view, just in time to see it bind on to its prey calling loudly, then, what I assume was the male (smaller) bird returning the call as it flew past towards the action. Quite the best armchair birding I've had in some time.
David, Felinfach