sweden crows pick up cigarettes Swedish startup Corvid Cleaning built a machine that dispenses food scraps when wild drop cigarette butts into a slot. Crows are entirely voluntary participants, drawn in by their problem-solving ability researchers In Sweden, group of crows

In Sweden, group of crows are trained picking up cigarette butts off the street, cutting clean up costs by up to 75%. A Swedish company called Corvid Cleaning is training wild crows in the city of Sdertlje to collect cigarette butts in exchange for food rewards. The project uses a specially designed machine that 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 Wild crows collect cigarette butts in Sweden for food rewards

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