crows picking up cigarettes trained to clean cigarette butts in Sweden Clever Crows Pick up Cigarette

Clever Crows Pick up Cigarette Butts in Sweden in Exchange for Rewards 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 developed a Butts for nuts: can crows do our dirty work (and should they)? In Sweden, Crows Are Learning to Pick and Dispose of Cigarette Butts Properly The Swaddle CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta No Butts About It: Crows Cleaning Up Cigarettes at a French Theme Park Urbanist

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