sweden crow cigarette In Sweden, a startup tested a smart but unusual idea: rewarding wild crows with food for picking up butts. The birds drop the waste into a special machine and receive a Rumor that city in Sweden

Rumor that city in Sweden trained crows to pick up cigarette butts is for the birds Fascinating experiment from Sweden where crows are trained to pick up cigarette butts & drop them into a machine in exchange for food. Indian cities have no shortage of crows & our The Swedish have wild drone tech : r BirdsArentReal Wild crows in Sweden are helping keep public spaces clean by doing something remarkable. Using their advanced problem solving skills, the birds have learned to drop cigarette butts into a special machine that

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