{"fact":"Crows have been observed using tools in creative ways.  They've even been seen using smoldering cigarette butts to smoke parasites out from under their wings.","context":"The authors relate many examples of corvid ingenuity. Renowned as devious tricksters, the birds can also be creative; for example, rooks have been observed using smouldering cigarette ends to smoke parasites out from under their wings.","source":"Nicola Clayton, Corvid cognition: Feathered apes, 10.1038/484453a","index":598}