Any ideas?

All day we've had Buzzards drifting over the garden: some have been quite low! (Pictures later.)

One bird, however, intrigued me: it was somewhat distant, and the light was pretty grim, but I got the impression of bulk and ponderous flight. In the few images I managed - and through the binoculars - I noticed that the bird never raised its wings into a 'V' to soar: it kept them flat, with an Osprey-like Ju87 (Stuka) wing shape.