That might do less good that you might think, since an eagle strike could fracture your skull. Full helmet and body armor would help, though. Also the authorities are not going to send in attack eagles against humans, no matter how awesome the visuals might be.
Yes, there are better anti-drone measures than eagle-assault. Like posted signs that say “Caution, unauthorized drone operators may suffer from fractured skulls, severe lacerations, or car impoundment.”
