I guess not all anti quad safety techniques will be hi tech.
 

https://www.youtube.com/watch?v=Vd00zh4NGcc

looks like a good way to injure/harm an otherwise great raptor.

From the written article:

“What I find fascinating is that birds can hit the drone in such a way that they don’t get injured by the rotors,” said LeBaron. “They seem to be whacking the drone right in the center so they don’t get hit; they have incredible visual acuity and they can probably actually see the rotors.”
Humans, of course, only see rotors as a blur – LeBaron suspects that the eagles can make out the complete movement and thus have no trouble avoiding injury. It doesn’t hurt, either, that attacking a drone the way a bird might attack another bird is usually effective. “Their method of attack is always going to be to hit it in the middle of the back; with the drones they perceive the rotors on the side and so they just go for the rear.”

That is so cool.

I was flying with the guys, a car nobody knows pulls in. Guy comes over and asks can he fly. Everybody says sure. He goes to his car, we all think for a plane. He comes back with a Falcon. He lets a pigeon go waits then releases the Falcon. Bam, Falcon returns with lunch.

Pigeon Lives Matter !

actually, the rotors were not the cause for concern. if they cause the bird pain, the bird just drops the prey.
now, what i was thinking about was more along the lines of a razor sharp talon puncturing heat shrink and thin foil of a LiPo. almost an immediate release of extremely hot and fast moving gasses. don't much think the bird could jettison it fast enough to avoid damage.

I imagine those leather straps on the birds feet tangle up in the rotors as well...

I doubt that would short the battery. Crash's cause the batteries to short internally, but I don't think puncturing usually cause's a short.
s

it is rather obvious, that, you have never witnessed a lipo puncture incident.
it aint a nicad or nimh for sure.
very violent and excessively hot.
something about the chemical reaction of lithium and oxygen in the air. shorting has nothing to do with it.

I have seen them burn several times, I just assumed the crash caused them to short. BTW one reason I don't fly electric. At least with glow and gas you may be able to glue it back together. And you won't get sued or charged for starting a forest fire.