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 Sweden startup is teaching crows

Sweden startup is teaching crows to clean up cigarette butts after stupid humans 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 Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds Wild crows trained to pick up cigarette butts in Swedish street cleaning project

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