Not quackeryJarrod Hodgson/Unmanned Research Aircraft Facility University of AdelaideBy Chris BaraniukIs it a bird? Well, no, it’s a plastic duck. In fact, it’s about a thousand of them, give or take a few. An experiment using fake ducks to stand in for the real thing has found that when it comes to counting birds, drones beat humans. Jarrod Hodgson...