crow cigarette cleaning Crows trained to clean up cigarette butts in Sweden

In 2022, a Swedish startup called Corvid Cleaning, based in Södertälje near Stockholm, designed and demonstrated a vending-machine-style prototype intended to train wild crows to pick up cigarette butts. Crows drop the

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Fact | What if some of the smartest birds on Earth could help clean our cities? In Sweden, a startup called Corvid Cleaning tested a pilot machine

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Sweden has begun training wild crows to collect litter — especially cigarette butts — in exchange for food rewards

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What if city cleaners had feathers, wings... and incredibly smart brains? in Sweden, a startup called Corvid Cleaning reportedly created a machine designed to train wild crows to collect cigarette butts from

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Clever Crows Are Now Picking Up Cigarette Butts — And Quietly Saving Millions in Cleaning Costs

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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

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Crows in Sweden help clean streets by exchanging trash for food

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