Monday Mystery

Once again, on our mid morning walkabout yesterday, I spotted another painted stone. This time on a pile of roofing tiles next to an old outhouse being converted to a dwelling:



I may have missed others on previous walks so I have no idea how often they appear and still no idea whatsoever as to their purpose.  Intriguing though. Some days ago there was a piece of scrunched up paper in the tree fork where one stone had appeared in the past. It was awful weather that day so I didn't look closely at it. Maybe if I had I might have been somewhat wiser.