crow cigarette butts In Sweden, Crows Are Learning to Pick and Dispose of Properly Crows trained to clean up

Crows trained to clean up cigarette butts in Sweden Reuters 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 cigarette butts from the streets 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 Crows trained to clean up cigarette butts on Swedish streets National

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