sweden crow cigarette 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 butts from the streets Crows Trained to Pick Up

Crows Trained to Pick Up Cigarette Butts by Swedish Startup 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 Swedish startup's device trades food for litter, reduces cigarette butts In a city near Stockholm, wild crows are being trained to become street cleaners and it's turning heads around the world. A Swedish startup called Corvid Cleaning built a machine that

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