sweden crows pick up cigarettes uses to cigarette butts The Guardian – Crows are

The Guardian Crows are being recruited to pick up discarded cigarette butts from the streets and squares of a Swedish city as part of a cost cutting drive. The wild birds carry Cool idea, but is it possible? : r crows Swedish startup Corvid Cleaning built a machine that dispenses food scraps when wild crows drop cigarette butts into a slot. Crows are entirely voluntary participants, drawn in by their problem solving ability researchers A machine that trades food for litter : r Amazing No, crows aren't cleaning up cigarette butts in Sweden Popular Science 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

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