Sandstone

This morning, we went to New Aberdour beach.
It was a lovely day and there were lots of housemartins about. Some feeding their young, others still building a nest as you can see in the extra.
Unfortunately, one of them decided to “leave their mark” on me!
Fortunately, I was wearing a sun hat at the time.
This link here https://youtu.be/IMPMiLddsuE seems so fitting. And such a fine track.