Spying Phantom Neighbours

Heard the hum of this machine before I saw it. I was on my back verandah and it was hovering above my gum tree down the back, grabbed my camera and it continued to hover around the gum tree.

 

Very interesting!! Looks like an expensive piece of equipment to me. I wonder if they are capable of seeing inside other yards and houses. Legal? Hmmm bit of an invasion I say!

Done