Strange Anomaly Needs Explanation

In a series of pictures snapped in quick succession, an empty moonlit lawn and trees is seen... in the next image appears a small figure, blurred in the shadows moving from left to right. It disappears in the next image. Could this be a capture of a spirit?  The photos were posted to Imgur by MeTarzanYouJane, who wrote: "A family member of mine snapped these two photos on the night of the abnormally large full moon.

Click image to go to Imgur User's Huge Photos for Study.