sweden crows cigarettes trained to clean up cigarette butts in Cigarette butts make up more

Cigarette butts make up more than 60 percent of all street litter in Sweden, and cities spend millions of kronor every year cleaning them up. One Swedish startup looked at that problem 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 In Sweden, group of crows are trained picking up cigarette butts off the street, cutting clean up costs by up to 75%. Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds

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