crows picking up cigarettes Clean City Streets by Collecting Cigarette Butts Unbox - Sweden has begun

Unbox Sweden has begun training wild crows to collect litter especially cigarette butts in exchange for food rewards. A special machine recognizes when a crow drops a piece of Rook at this mess: French park trains crows to pick up litter France The Guardian 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 Butts About It: Crows Cleaning Up Cigarettes at a French Theme Park Urbanist

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