sweden crows pick up cigarettes Wild trained to cigarette butts in Swedish street cleaning project In a city near Stockholm,

In a city near Stockholm, wild crows are being trained to become street cleaners and it's turning heads around the world. A Swedish startup called Corvid Cleaning built a machine that Crows trained to clean up cigarette butts in Sweden YouTube No, crows aren't cleaning up cigarette butts in Sweden Popular Science A Swedish company has been training crows to pick up cigarette butts in an effort to reduce the cost of cleaning litter off the streets in Sdertlje, near Stockholm., Corvid Cleaning has developed a A Swedish startup called Corvid Cleaning has found a clever way to clean up city streets by teaming up with wild crows. Instead of paying human crews to pick up small pieces

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