crow cigarette cleaning Crows trained to clean up butts on Swedish streets Sweden uses crows to pick

Sweden uses crows to pick up cigarette butts Crows 'Paid' to Pick Up Cigarette Litter in Sweden In Sweden, a startup called Corvid Cleaning tested a pilot machine designed to train crows to collect cigarette butts and exchange them for small food rewards. Corvids: the bird family that includes CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta 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 In Sweden, Crows Are Learning to Pick and Dispose of Cigarette Butts Properly The Swaddle

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