crows collecting cigarettes In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild to collect cigarette butts from the streets Crows in Sweden help clean

Crows in Sweden help clean streets by collecting cigarette butts for food Crows Trained to Pick Up Cigarette Butts by Swedish Startup Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch 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

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