crows cleaning up cigarettes Clean City Streets by Collecting Cigarette Butts 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 A Swedish company has been training crows to pick up cigarette butts in an effort to reduce the cost of cleaning litter off the streets in Sdertlje, near Stockholm. Corvid Cleaning has A machine that trades food for litter : r Amazing Swedish Company Trains Crows to Clean Up Cigarette Butts EcoWatch Sweden has begun training wild crows to collect litter especially cigarette butts in exchange for food rewards. Tim Wass

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