sweden crow cigarette A Swedish company has been training crows to pick up butts in an effort to reduce the cost of cleaning litter off the streets in Södertälje, near Stockholm., Corvid Cleaning has developed a In Sweden, a startup tested

In Sweden, a startup tested a smart but unusual idea: rewarding wild crows with food for picking up cigarette butts. The birds drop the waste into a special machine and receive a 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 In Sweden, a startup tested a machine that rewards crows with food every time they drop cigarette butts into it. The idea sounds unbelievable, but the goal was simple: turn one of 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

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