BIRD BOTS. “They’re autonomous, meaning that they compute their flight plans on their own, without any central control. They can follow instructions, but they work out their own paths using GPS signals to navigate and radio signals to talk to one another. They’re the closest thing we have to an artificial flock of birds.”
http://phenomena.nationalgeographic.com/2014/02/27/a-bird-like-flock-of-autonomous-drones/