Swift conditioned crows to arrive at a certain location and time by feeding them treats. The study involved American crows ( Corvis brachyrhynchos) in an urban setting. Crows have been shown to associate dead bodies of their own kind with danger, and are also known to remember the faces of individual humans who have threatened them.Ī study by Kaeli Swift at the University of Washington now indicates the birds can combine these abilities in order to associate individual humans with dead crows and deem them threatening.
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