Some years back I was in a large nearby park watching a guy having all kinds of fun with a radio controlled model airplane. Looping, swooping, doing figure 8s, strafing runs at a couple of squirrels, and generally having a good ole time.

Then the hawk seemed to appear from nowhere.

The hawk was quite startled when its prey seemed to fly apart in its talons, but it was not hurt, and the guy managed to salvage the motor and one wheel off the landing gear.

A helicopter configuration would probably be dangerous to the bird.

How about going after the intruding drone with a drone of one's own?

Don Firth