crows picking up cigarettes Swedish Company Trains to Clean Cigarette Butts Crows trained to clean up

Crows trained to clean up cigarette butts on Swedish streets National 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 No Butts About It: Crows Cleaning Up Cigarettes at a French Theme Park Urbanist Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs Good birdie! This box trains crows to collect cigarette butts for cleaner cities Digital Trends 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

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