The case of the curious stick

What do you suppose this heap of soil, Guinea Fowl feather and stick would be doing on a path in a field? Is it perhaps a sign of sorts? Could it be a clue to something or a waypoint on a treasure map? I noticed that the soil had been recently placed and carefully looked around the area for footprints - or some other clue as to the presence of someone... but alas, there was none.

Some may be wondering what I'm going on about but perhaps it's clear to others that I've simply just watched a Sherlock Homes movie. :)