crows cigarette butts Swedish Company Trains to Clean Up 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 Crows trained to clean up cigarette butts in Sweden Reuters Did You Know? In Sweden, clever crows learned to exchange discarded butts for food. In 2022, a startup called Corvid Cleaning tested the unusual idea in Sdertlje, a city near Stockholm. CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta
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