sweden crows cigarettes Wild collect cigarette butts in for food rewards A Swedish startup called Corvid
A Swedish startup called Corvid Cleaning has found a clever way to fight litter using wild crows. According to The Guardian, the company developed a device that rewards crows with food when Crows trained to pick up cigarette butts in Sweden Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden Cigarette butts make up more than 60 percent of all street litter in Sweden, and cities spend millions of kronor every year cleaning them up. One Swedish startup looked at that problem
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