Redpoll Being Attacked by Predator Drone

The photo captures what appears to be another redpoll approaching the bird feeder. Looking at the shape of the bird, if it were painted black, one might think it was a stealth bomber. But it has, what appears to be, colors of a redpoll, but it might possibly be a predator drone spying to see if the right process and kind of bird feed is being used and whether it’s legal.