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 trade cigarette butts

Wild crows trade cigarette butts for peanuts to keep Swedish streets clean National Post 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 Crows Trained to Pick Up Cigarette Butts by Swedish Startup In Sweden, Crows Are Learning to Pick and Dispose of Cigarette Butts Properly The Swaddle

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