crows picking up cigarettes Clever Are Now Cigarette Butts — And Quietly Saving Millions in Cleaning Costs Crows help to clean up

Crows help to clean up cigarette butts in several countries Good birdie! This box trains crows to collect cigarette butts for cleaner cities Digital Trends A Swedish company has been training crows to pick up cigarette butts in an effort to reduce the cost of cleaning litter off the streets in Sdertlje, near Stockholm. Corvid Cleaning has In Sweden, Crows Are Learning to Pick and Dispose of Cigarette Butts Properly The Swaddle Latest Attraction at French Theme Park: Crows That Pick Up Trash The New York Times

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