sweden crow cigarette startup is teaching crows to clean up butts after stupid humans Crows trained to clean up

Crows trained to clean up cigarette butts on Swedish streets National In Sweden, crows became street cleaners. A startup built vending machines that trade peanuts for cigarette butts. Wild crows discovered the deal and mastered it fastteaching each other the trick. Now they 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. 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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