sweden crows pick up cigarettes trained to clean cigarette butts on Swedish streets The Guardian – Crows are

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 No, crows aren't cleaning up cigarette butts in Sweden Popular Science 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 Sweden uses crows to pick up cigarette butts

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