Do you ever have that feeling you're being watched?
I was walking along a riverbank in the hope of spotting a Kingfisher and got those shivers up my back. You know the one's. I had a look over my shoulder and saw I was indeed being observed. It just sat there as I found a good position and took a couple of shots, then calmly stood up and wandered off.
PS. I didn't find a Kingfisher.