sweden crows cigarettes A project in is training to help clean the streets by collecting discarded cigarette butts. The system uses a machine that rewards the birds with food when they drop cigarette Wild crows trained to pick

Wild crows trained to pick up cigarette butts in Swedish street cleaning project Crows to help clean up cigarette butts in Sweden A Swedish startup is training wild crows to pick up cigarette butts in exchange for snacks saving cities money and cleaning streets naturally., #Innovation #Sustainability #SmartCities #Wildlife Swedish firm deploys crows to pick up cigarette butts Birds The Guardian

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