Lichen.

I wont even attempt to identify it.
Because we both wanted to watch the last Grand Prix of the year, we decided to walk this morning rather than in the afternoon as we usually do.
It was a good decision, it wasn't too cold and the sun shone, for most of the time, through thin clouds, giving a nice soft light.
We had the meadows to ourselves and our first thoughts were, where is everyone,  but when we turned for home it suddenly got  crowded , dog walkers were out in force, including what appeared to be a terrier training club and there was some sort of organised group at the mill