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

In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect cigarette butts from the streets CROWS Clean Up City Streets by Collecting Cigarette Butts Recycling Council of Alberta Corvid Cleaning developed a machine that encourages wild crows to collect litter. The birds drop cigarette butts into the slot and get food in return. No cages, no forced training the Crows Cleaning Cities #shorts

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