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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 1 week ago* (last edited 1 week 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 10 points 1 week ago

Just the swedish ones. I held up a sign in my yard that said free peanuts and some of them came right away but when I held up a swedish sign they all completely ignored me. This was in America though, so they're likely just uneducated.

this post was submitted on 08 Dec 2025
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