crows picking up cigarettes In Sweden, group of are trained cigarette butts off the street, cutting clean-up costs by up to 75% No Butts About It: Crows

No Butts About It: Crows Cleaning Up Cigarettes at a French Theme Park Urbanist 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 Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs Wild crows trained to pick up cigarette butts in Swedish street cleaning project South China Morning Post The Figen's Video on X

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