"As far as I could tell, the hawk came out unscathed, and having defeated his prey, was happy to retreat. (As soon as he flew at me, I throttled down the props to try to minimize any harm to the bird.)," adds Schmidt on YouTube.
As more and more drones start filling the air in birds' well-guarded territory, attacks like this one may become more common.
This summer, the U.S. National Park Service banned the use of drones in all parks across the country, citing the possibility that they could have an adverse effect on animals.