Found Art – Raven Gravings

I was out walking today—we had fresh snow yesterday and it was about 10 degrees above zero (F). Near my house is a field with an old split rail fence, and raven tracks were scattered about the fence’s base.  

At one spot near the end of the fence were three sets of impressions of a raven’s wings in the snow. They were sort of stacked up (totem pole-like) perpendicular to the fence. (The photo is of the best-defined wing impressions.)

I have no idea what was going on—whether the raven was standing on the fence and then jumped off into the snow, or what. I do know that ravens are playful creatures and seem to just enjoy larking around. Was the raven simply having fun?