Qbertino writes: Heise.de (German article) reports that the Dutch police is training raptor birds — bald eagles, too — to take down drones. There's a video (narrated and interviewed in Dutch) linked in TFA. It's a test phase and not yet determined if this is going real — concerns about the birds getting injured are among the counter-arguments against this course of action. This all is conducted by a company called "Guard from above," which designs systems to prevent smugling via drones. The article also mentions MTU's net-shooting quadcopter concept of a drone-predator. Of course, there are also 'untrained' birds taking out quadcopters, as you might have seen already.