In the still photo, all I see is what looks to be dust in the upper right corner of the photo, just above where the two lengths of fence meet. Regardless of what I (or anyone else for that matters) sees/interprets, what's more important is what you think you see, and why? Is there some reason you think there might be some paranormal component here? Something you know about the property, perhaps? Or maybe your personal history/previous experiences lead you to consider the possibility of the paranormal?