sweden crow cigarette A machine that trades food for litter : r/Amazing Crows Trained to Pick Up

Crows Trained to Pick Up Cigarette Butts by Swedish Startup 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 Swedish startup's device trades food for litter, reduces cigarette butts A Swedish start up, Corvid Cleaning, is recruiting an unlikely workforce, wild crows, to combat urban pollution., The pilot project, launched in partnership with the Keep Sweden Tidy Foundation,

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