sweden crow cigarette A project in is training crows to help clean the streets by collecting discarded butts. The system uses a machine that rewards the birds with food when they drop cigarette In Sweden They Train Birds

In Sweden They Train Birds to Remove Cigarette Butts! YouTube 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 Crows trained to pick up cigarette butts in Sweden YouTube Swedish startup's device trades food for litter, reduces cigarette butts Unbox Sweden has begun training wild crows to collect litter especially cigarette butts in exchange for food rewards. A special machine recognizes when a crow drops a piece of Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds

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