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 Sweden uses crows to pick

Sweden uses crows to pick up cigarette butts Crows trained to clean up cigarette butts on Swedish streets National Wild crows in sweden trained themselves to exchange cigarette butts for food, using machine deisgned YouTube 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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