Beautiful site. Very nice.
It is probably one of those new back to site security cameras. They will most likly be hooked into a wifi network if there is a few of them. Got a wifi detector? If it is broadcasting a SSI maybe it will have a name like "XYZ-secnetwork or similar. Or they could simply have sim cards and be back to base. Nice tech.
I'm estimating that it would be real. People who go to that much trouble to secure a site probably spend that little extra to move from a deterrent to detection. It would be interesting if you could describe what is on top of the pole. Camera? Solar panel? Monkey with a stick?