sweden crow cigarette In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect butts from the streets Watch: Wild crows trained to

Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden Crows Trained to Pick Up Cigarette Butts by Swedish Startup In Sweden, a startup tested a smart but unusual idea: rewarding wild crows with food for picking up cigarette butts. The birds drop the waste into a special machine and receive a 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 Sweden uses crows to pick up cigarette butts Swedish Company Trains Crows to Pick Up Cigarette Butts

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