sweden crow cigarette Crows trained to clean up butts in 🧠 Did You Know? In

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. Butts for nuts: can crows do our dirty work (and should they)? Wild crows trained to pick up cigarette butts in Swedish street cleaning project Sweden uses crows to pick up cigarette butts In Sweden They Train Birds to Remove Cigarette Butts! YouTube 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

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