sweden crows cigarettes Butts for nuts: can do our dirty work (and should they)? 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 Wild crows trained to pick up cigarette butts in Swedish street cleaning project Sweden Turns Crows Into City Cleaners by Rewarding Them With Food These birds are being recruited to pick up discarded cigarette butts from the streets and squares of a Swedish city as part of a cost cutting drive., The crows carry out the task as they receive some Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch

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