sweden crow cigarette When Birds Help Clean The City In Sweden, researchers and innovators have experimented with training wild crows to collect discarded butts in exchange for food rewards. using simple learning mechanisms, the A Swedish startup, Corvid Cleaning,

A Swedish startup, Corvid Cleaning, is tackling litter by training wild crows to collect cigarette butts in exchange for food : r interesting Crows trained to pick up cigarette butts in Sweden YouTube Sweden startup is teaching crows to clean up cigarette butts after stupid humans 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 Crows trained to clean up cigarette butts on Swedish streets National Sweden deploys 'easy to teach' CROWS to pick up cigarette butts on city streets Daily Mail Online

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