31 Oct '17, 2pm

Blueberry Farm Uses Lasers to Scare Off Hungry Birds

Last summer, a blueberry farm in Oregon was desperate to solve its bird problem. The year before, the farm had lost more blueberries to hungry birds than in any previous growing season, with robins and starlings devouring 25 percent of its crop. At the start of this year’s growing season, the 168-acre farm installed six Agrilaser Autonomics —which are automated laser guns mounted on a pedestal—and aimed them at its blueberry bushes. The devices shoot a steady green laser beam that sweeps across the bushes from side to side. Birds seem to mistake the sweep of the laser for a predator’s approach, and take flight whenever it comes near. Bird Control Group , the company that manufactures the lasers, says the devices have reduced the number of birds on the blueberry farm by 99 percent, from an average of 1,500 birds to just a handful. The farm estimates it has saved about 262,5...

Full article: https://spectrum.ieee.org/tech-talk/green-tech/conservati...

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