sweden crow cigarette Crows trained to clean up butts on Swedish streets Crows trained to clean up

Crows trained to clean up cigarette butts in Sweden Reuters Swedens Corvid Cleaning tested an ingenious vending machine that trained wild crows to clean up streets! , When crows dropped discarded cigarette butts into the device, it scanned the litter and The Swedish have wild drone tech : r BirdsArentReal These birds 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 crows carry out the task as they receive some In a city near Stockholm, wild crows are being trained to become street cleaners and it's turning heads around the world. A Swedish startup called Corvid Cleaning built a machine that

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