crows cleaning up cigarettes In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid trained wild to collect cigarette butts from the streets Clever Crows Are Now Picking

Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs 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 Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden SWEDEN IS REWARDING CROWS WITH FOOD FOR CLEANING UP CIGARETTE BUTTS! In Sdertlje, Sweden, a startup called Corvid Cleaning is testing a clever idea: training crows to collect cigarette butts off the

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