In France, some crows have been trained to pick up cigarette butts on the street. Crows collect cigarette butts and put them in a machine, where they receive food as a reward.


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In France, some crows have been trained to pick up cigarette butts on the street. Crows collect cigarette butts and put them in a machine, where they receive food as a reward.
Source

Reddit Video Training Exchange Cigarette butts Birds Smart Crows France
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