crows cigarette butts Wild trade for peanuts to keep Swedish streets clean Crows trained to clean up

Crows trained to clean up cigarette butts on Swedish streets National Good birdie! This box trains crows to collect cigarette butts for cleaner cities Digital Trends A machine that trades food for litter : r Amazing A Swedish start up, Corvid Cleaning, is recruiting an unlikely workforce, wild crows, to combat urban pollution., The pilot project, launched in partnership with the Keep Sweden Tidy Foundation, 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

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