crows cleaning up cigarettes Wild trained to pick cigarette butts in Swedish street project Sweden’s Corvid Cleaning tested an

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 In Sweden, group of crows are trained picking up cigarette butts off the street, cutting clean up costs by up to 75%. A machine that trades food for litter : r Amazing Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch Swedish firm deploys crows to pick up cigarette butts Birds The Guardian Sounds like a good deal to me The Swedish city of Sdertlje has trained crows to collect cigarette butts in exchange for food. The intelligent birds drop discarded cigarette ends into

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