sweden crows pick up cigarettes uses to cigarette butts Crows Trained to Pick Up

Crows Trained to Pick Up Litter in Swedish Experiment Jason Hood posted on the topic LinkedIn Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden 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 Ren Volpi (@renegvolpi): "Sweden once explored one of the strangest anti litter ideas: training crows to pick up cigarette butts. In Sdertlje, near Stockholm, a startup called Corvid Cleaning designed a machine that

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