I wonder if the hawk was injured by the spinning rotors.
I was thinking the same thing.
These drones need to be designed to be harmless to wildlife or stay out of the sky.
And they should be designed to be noiseless.
The RTHA seemed to fly away normally and there was no feathers flying about or adventitious molt visible.
Don't know about now, but in breeding season, adults (depending on species) could possibly see a drone as a predator and act accordingly such as mobbing behaviors, etc.
I don't think so. If you view the video fullscreen and then pause after the hawk strikes the drone you can see that he is okay. In one shot you can see the hawk still has his eye on the drone as it falls away to the ground. Pretty cool.
It seems he struck the top of the camera unit.
Not every aerial robot is made of metal, and many are very small. They would be no match for a hawk.
Another reason not to trust business transactions to these stupid things.