crows cigarette butts A project in Sweden is training to help clean the streets by collecting discarded butts. The system uses a machine that rewards the birds with food when they drop cigarette René Volpi (@renegvolpi): "Sweden once

Ren Volpi (@renegvolpi): "Sweden once explored one of the strangest anti litter ideas: training crows to pick up cigarette butts. In Sdertlje, near Stockholm, a startup called Corvid Cleaning designed a machine that Trading Bird Food For Cigarette Butts Hackaday Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch 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 dutch start up crowded cities wants to train crows to pick up cigarette butts Swedish firm deploys crows to pick up cigarette butts Birds The Guardian

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