Private Land.....

This photograph was taken in Reculver.... The sign, refers to the Wildfowling And Conservation Association..... a local association who apparently shoot birds!.... I suppose its not just any birds, but nevertheless... they are still Birds!! You can read more here!
I was inspired to take this photograph because I thought the formation of rocks looks a bit like a Cairn! You can read more about Cairns here!

In short, in modern times cairns are often erected as landmarks. In ancient times they were erected as sepulchral monuments, or used for practical and astronomical uses. They are built for several purposes: They may mark a burial site, and may memorialize the dead, they may be used to commemorate events: anything from a battle site, to the place where a cart tipped over, and some are merely places where farmers have collected stones removed from a field.