crows picking up cigarettes Wild trained to pick cigarette butts in Swedish street cleaning project Clever Crows Are Now Picking

Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs In Sweden, a startup tested a smart but unusual idea: rewarding wild crows with food for picking up cigarette butts. The birds drop the waste into a special machine and receive a A Swedish startup, Corvid Cleaning, is tackling litter by training wild crows to collect cigarette butts in exchange for food : r interesting Wild crows trained to pick up cigarette butts in Swedish street cleaning project South China Morning Post Crows pick up cigarette butts: Dutch startup training birds to pick up litter for food TomoNews Dutch Company Wants To Use Crows To Clean Up City Of Cigarette Butts

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