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Crows are intelligent birds and learn quickly – even from each other. In Sweden, they are used to collect cigarette butts and bring them to a machine that automatically rewards them with peanuts. (lemmy.ca)
submitted 2 months ago* (last edited 2 months ago) by slothrop@lemmy.ca to c/mildlyinteresting@lemmy.world
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Corvid Cleaning: Deploys Crows to Clean Up Cigarette Butts in Sweden

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[-] WhyIHateTheInternet@lemmy.world 3 points 2 months ago

There's also the concern of the tobacco. Butts aren't just filters, there's plenty of sweet addictive nicotine left usually.

this post was submitted on 08 Dec 2025
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