Yes, we live near the ringers and we frequently get a sparrowhawk in the garden. You can tell because it all suddenyl goes quiet as all the opther biurds fly away! They are beautiful to see, especially if you are luck enough to see them in flight - their agility is incredible! You are very lucky to see a pair, I wonder if it's a breeding pair? Whereabout in Marple are you? I might be tempted to take the big camera out for a walk....