crow cigarette butts No About It: Crows Cleaning Up Cigarettes at a French Theme Park A project in Sweden is

A project in Sweden is training crows to help clean the streets by collecting discarded cigarette butts. The system uses a machine that rewards the birds with food when they drop cigarette Wild crows trained to pick up cigarette butts in Swedish street cleaning project Swedish startup's device trades food for litter, reduces cigarette butts A Swedish startup called Corvid Cleaning has found a clever way to fight litter using wild crows. According to The Guardian, the company developed a device that rewards crows with food when

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