sweden crows cigarettes uses to pick up cigarette butts Swedish start-up trains crows to

Swedish start up trains crows to collect cigarette butts Startup Pedia posted on the topic LinkedIn Wild crows in sweden trained themselves to exchange cigarette butts for food, using machine deisgned YouTube In Sweden, group of crows are trained picking up cigarette butts off the street, cutting clean up costs by up to 75%. 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,

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