Thanks All. Fingers crossed later in the season the MW can be caught going almost vertical above the stones..... We've not had a clear night since I took these though!
They are little trees/bushes Rob. Just over the brow of the hill the Stones are on is the main A303 trunk road & it goes uphill out of shot left side. Anything travelling west (left to right) can light the scene with their headlights especially some of the articulated lorries with hundreds of lights on the front!!
Yeah I keep forgetting how close they are to the A303, framing it more to the left would likely bring all the light pollution from the motorway into the frame.









