crows collecting cigarettes Corvid Cleaning developed a machine that encourages wild to collect litter. The birds drop cigarette butts into the slot and get food in return. No cages, no forced training — the 🧠 Did You Know? In

Did You Know? In Sweden, clever crows learned to exchange discarded butts for food. In 2022, a startup called Corvid Cleaning tested the unusual idea in Sdertlje, a city near Stockholm. Rubbish collecting crows a star attraction at French theme park Arab News 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 Crows pick up cigarette butts: Dutch startup training birds to pick up litter for food TomoNews Crows collecting cigarette butts for little treats Wild crows trained to pick up cigarette butts in Swedish street cleaning project

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