crows cleaning up cigarettes Swedish Company Trains to Clean Cigarette Butts In Sweden, an innovative project

In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect cigarette butts from the streets Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden No, crows aren't cleaning up cigarette butts in Sweden Popular Science CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta Here's A (Crazy?) Plan To Bribe Crows To Clean Up Cigarette Butts Fast Company

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