Goffin's cockatoos have edged parrots closer to corvids in the battle of the brainiest birds, by revealing their extraordinary ability to use composite tools.
First author biologist Antonio Osuna-Mascaró from the University of Veterinary Medicine in Vienna and colleagues designed an experiment they called the Golf Club Task. It's a puzzle box with a green carpeted floor that requires a ball to be inserted then putted along with a stick into a hole, to trigger the release of a reward.
This proved easy for some of the bird brains in the experiment. Out of 11 cockatoos, 5 were able to solve the task – all drastically reducing their trial time suddenly once they understood. "This suggests that the birds were able to immediately identify and memorize the necessary steps upon their initial success," the researchers,"a pattern that is inconsistent with typical associative learning progressions yet strongly consistent with previous Goffin problem solving performances."
What's more, the three cockatoos that worked out the task within the trial criteria all used different techniques. Why are these 3 styles important? Because the way these cockatoos use tools is much more similar to ours than that of the New Caledonian crows
France Dernières Nouvelles, France Actualités
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