On June 10th, 2015 I decided to do a test flight of my drone which I'm selling. I took some video and photos of the drone in flight. This was in a large open space area approx. 1/2 mile from my house. While taking the video/photos I noticed nothing else in the sky at all. No planes, nothing. Of course my eyes were on the sky the entire time. Later when I loaded the photos into my computer I noticed an odd shaped "sky snake" hovering above my drone. I cannot tell how far away it is with the 2 dimensional photo. Again, I DID NOT SEE IT when I took the photo. I didn't see anything in the sky after taking the photos either. It's impossible to give any more detail since I didn't find the object until after I downloaded the photos. I posted on FB, no one has any idea what this thing might be. How about you guys after seeing the photo attached? Any educated guesses?