These mega-smart crows are cleaning cigarette butts off city streets — and saving millions of dollars in the process
Cigarette butts alone make up a whopping 62% of all street litter in Sweden.
Source: yahoo.com
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Source: scientificamerican.com
Trash birds: A startup in Sweden is recruiting crows to do our dirty work | Innovation
Clever corvids are being recruited to clean up the streets of Södertälje in Sweden in an innovative project.
Source: earthtouchnews.com
Crows deployed to pick up cigarette butts by Swedish firm
The unusual recruitment is part of a cost-cutting exercise in the city of Södertälje.
Source: birdguides.com