crow cigarette butts These birds are being recruited to pick up discarded from the streets and squares of a Swedish city as part of a cost-cutting drive., The crows carry out the task as they receive some Trading Bird Food For Cigarette

Trading Bird Food For Cigarette Butts Hackaday In Sweden, Crows Are Learning to Pick and Dispose of Cigarette Butts Properly The Swaddle Swedish startup's device trades food for litter, reduces cigarette butts In Sweden They Train Birds to Remove Cigarette Butts! YouTube 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 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

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