sweden crows pick up cigarettes Swedish Company Trains to Cigarette Butts In Sweden, a surprising idea

In Sweden, a surprising idea is turning crows into allies in keeping cities clean. Instead of hiring crews to pick up cigarette butts, one of the most common types of litter, a Sweden deploys 'easy to teach' CROWS to pick up cigarette butts on city streets Daily Mail Online In a city near Stockholm, wild crows are being trained to become street cleaners and it's turning heads around the world. A Swedish startup called Corvid Cleaning built a machine that No, crows aren't cleaning up cigarette butts in Sweden Popular Science

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