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

Crows trained to clean up cigarette butts in Sweden Reuters Can Animals Be Trained to Become City Cleaners? Pop Up City Sweden startup is teaching crows to clean up cigarette butts after stupid humans dutch start up crowded cities wants to train crows to pick up cigarette butts Good birdie! This box trains crows to collect cigarette butts for cleaner cities Digital Trends 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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