crow cigarette butts Watch: Crows trained to collect in French theme park These birds are being recruited

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 A machine that trades food for litter : r Amazing No Butts About It: Crows Cleaning Up Cigarettes at a French Theme Park Urbanist Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds Crows pick up cigarette butts: Dutch startup training birds to pick up litter for food TomoNews

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