crows collecting cigarettes Clever Are Now Picking Up Cigarette Butts — And Quietly Saving Millions in Cleaning Costs When Birds Help Clean The

When Birds Help Clean The City In Sweden, researchers and innovators have experimented with training wild crows to collect discarded cigarette butts in exchange for food rewards. using simple learning mechanisms, the Sweden deploys 'easy to teach' CROWS to pick up cigarette butts on city streets Daily Mail Online Wild crows trained to pick up cigarette butts in Swedish street cleaning project Crows pick up cigarette butts: Dutch startup training birds to pick up litter for food TomoNews CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta

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