crow cigarette cleaning Crows in Sweden help clean streets by exchanging trash for food In Sweden, a startup called

In Sweden, a startup called Corvid Cleaning tested a pilot machine designed to train crows to collect cigarette butts and exchange them for small food rewards. Corvids: the bird family that includes 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 What if one of nature's smartest birds could help keep our streets cleaner? In Sweden, startup Corvid Cleaning tested an innovative machine that rewards crows with a small food treat whenever they Clever Crows Are Now Picking Up Cigarette Butts And Quietly Saving Millions in Cleaning Costs 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

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