Novel UAV use.

[macboffin]

This from the latest "Flight International". Interesting that they got clearance to operate at a busy international airport.FAA should note!

[Jack Crossfire]

These have been around for a while. Not autonomous of course. They also staffed full time animal trainers. Back when gas was only $3, they also drove out on the runway to scare birds off. Electric flight is definitely cheaper than that now.