sweden crows pick up cigarettes A Swedish company called Corvid Cleaning is training wild in the city of Södertälje to collect cigarette butts in exchange for food rewards. The project uses a specially designed machine that Swedish startup Corvid Cleaning built

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 Sweden startup is teaching crows to clean up cigarette butts after stupid humans Swedish firm deploys crows to pick up cigarette butts Birds The Guardian Wild crows collect cigarette butts in Sweden for food rewards A Swedish startup called Corvid Cleaning has found a clever way to clean up city streets by teaming up with wild crows. Instead of paying human crews to pick up small pieces 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

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