The next time you enjoy the sight of a hummingbird in a garden, you might want to look twice–because it could be the government’s new avian-inspired drone. Dubbed “Nano Hummingbird,” this camera-toting, remote-controlled surveillance tool is the latest gadget to fly out the doors of DARPA (Defense Advanced Research Project Agency).

Commissioned by the Pentagon in 2006 and designed by AeroVironment, this bird-drone’s abilities match its $4 million price tag: It flies forward, backward, and sideways, and it can even hover in mid-air. That’s not bad for a battery-powered, 6.5-inch long bundle of communication systems and motors that weighs in at two-thirds of an ounce. “We’ve achieved what our customer asked us to,” AeroVironment Vice President Steve Gitlin told TIME Magazine. But with a maximum speed of 11 miles per hour, natural hummingbirds can fly circles around this robot.

DARPA hopes Nano Hummingbird could eventually be used as an extra eye on the battlefield.

Video shows the drone flying outside and in, successfully maneuvering through a doorway. AeroVironment says it has reached “a technical milestone never before achieved — controlled precision hovering and fast-forward flight of a two-wing, flapping wing aircraft that carries its own energy ...