crows picking up cigarettes Clean City Streets by Collecting Cigarette Butts Crows trained to clean up

Crows trained to clean up cigarette butts in Sweden Reuters Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs Crows trained to clean up cigarette butts on Swedish streets National Sweden deploys 'easy to teach' CROWS to pick up cigarette butts on city streets Daily Mail Online A pilot program was implemented in Sdertlje, Sweden, to train wild crows to pick up cigarette butts from the streets. The initiative was developed by the Swedish startup Corvid Cleaning. The system

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