crows picking up cigarettes Clean City Streets by Collecting Cigarette Butts 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, group of crows are trained picking up cigarette butts off the street, cutting clean up costs by up to 75%. What if keeping the streets clean could earn a reward? In Sweden, a fascinating initiative has explored training crows to collect cigarette butts and other small pieces of litter in exchange for Butts for nuts: can crows do our dirty work (and should they)? Birds in France trained to pick up cigarette butts in exchange for food indy100 Wild crows trained to pick up cigarette butts in Swedish street cleaning project

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