{"fact":"Crows can be pretty resourceful! In one study, a crow even used its own feather as a tool to get food.","context":"The birds successfully utilized objects which ranged in size from standard paper clips (3.0 cm long) to wooden coffee stirrers (20.0 cm long) to operate the response key. These birds used the novel objects as tools as soon as they were introduced, and on one occasion Crow 45 was observed to use a displaced primary feather as a tool.","source":"Robert W. Powell; William Kelly, Tool use in captive crows, 10.3758/bf03337704","index":1}