I took the time to enlarge and stabilize the footage taken by Bob Garrett in his video "Three Miles In". What ever this is it is not the wind blowing or camera distortion. As it passes between two trees there appears to be a humanoid looking shadow cast by the subject. This looks just like the creature in the Predator movies. I have witnessed this myself on more than one occasion during my research. It can be extremely unsettling to know you are being watched or followed by something that is invisible to the naked eye.