In Sweden, wild crows are cleaning city streets—on purpose.
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In Sweden, wild crows are cleaning city streets—on purpose.
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This statement is largely accurate and well-supported by recent news and research. In Södertälje, Sweden, a pilot project led by the startup Corvid Cleaning is using wild crows to pick up discarded cigarette butts from city streets. The crows are trained to deposit the butts into a special machine, and in return, they receive a small food reward—typically peanuts or other snacks[1][3][6]. The initiative is designed to help reduce the city’s street cleaning costs, with estimates suggesting it could save at least 75% of the expenses associated with collecting cigarette butts[1][3][6].
The project highlights the intelligence of corvids—crows, ravens, and their relatives—which are known for their problem-solving abilities and capacity to learn from each other. While the birds participate voluntarily, their health is closely monitored to ensure they are not harmed by handling cigarette waste[1][3][6]. The pilot is still underway, with plans to expand only after thorough evaluation of the birds’ well-being and the project’s effectiveness[2][7].
[1] Crows help remove cigarette butts from the streets of Sweden https://www.warpnews.org/innovation/crows-help-remove-cigarette-butts-from-the-streets-of-sweden/
[2] Deploys Crows to Clean Up Cigarette Butts in Sweden https://journals.sagepub.com/doi/full/10.1177/25166042241296275
[3] Crows Trained to Pick up Cigarette Butts - Tobacco Reporter https://tobaccoreporter.com/2022/02/04/crows-trained-to-pick-up-cigarette-butts-in-sweden/
[4] Crows trained to pick up cigarette butts in Sweden - YouTube https://www.youtube.com/watch?v=TklOxbWfRDM
[5] Crows help rid this Swedish city's streets of cigarette butts https://www.optimistdaily.com/2022/12/crows-help-rid-this-swedish-citys-streets-of-cigarette-butts/
[6] Clever Crows Pick up Cigarette Butts in Sweden in Exchange for Rewards https://www.natureworldnews.com/articles/49173/20220202/clever-crows-pick-up-cigarette-butts-sweden-exchange-rewards.htm
[7] Putting humans to shame: intelligent crows pick up after smokers https://www.trtworld.com/life/putting-humans-to-shame-intelligent-crows-pick-up-after-smokers-54302
[8] What Swedish crows can teach us about finding hidden workforce https://action.deloitte.com/insight/1452/what-swedish-crows-can-teach-us-about-finding-hidden-workforce
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