crow cigarette butts In Sweden, Crows Are Learning to Pick and Dispose of Properly Crows trained to clean up

Crows trained to clean up cigarette butts in Sweden Reuters Swedens Corvid Cleaning tested an ingenious vending machine that trained wild crows to clean up streets! , When crows dropped discarded cigarette butts into the device, it scanned the litter and Crows Collect Cigarette Butts for Food in Swedish Pilot Amar Dalvi posted on the topic LinkedIn Cigarette butts make up more than 60 percent of all street litter in Sweden, and cities spend millions of kronor every year cleaning them up. One Swedish startup looked at that problem

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