The research is published in the scientific journal Proceedings of the Royal Society The team headed to the South Pacific island of New Caledonia, the home of Corvus moneduloides (New Caledonian crows).
They are the only birds known to make and use tools in the wild. The discovery that they whittle branches into hooks and tear leaves into barbed probes to extract food from hard-to-reach nooks astounded scientists, who had previously thought that the ability to fashion tools was unique to primates.
And further research in the laboratory and the field has revealed that New Caledonian crows are also innovative problem solvers, often rivalling primates.
The Beeb have a video here .Not to be outdone, the rooks show that SIZE MATTERS when seeking one's breakfast! here. Maybe they should get the vote in the forthcoming elections, and the layabouts lose theirs ...
Most intelligent bird video
Amazing Raven intelligence BBC Animals
following the example from Aesops fable!
Q. Could Sally the dog do the same? An experiment for the summer, maybe :)