Cockatoos have been filmed making the same tool from three different kinds of material, proving for the first time that they have a design in mind and are anticipating how it can be used.
Wild cockatoos can make utensils out of branches to open fruit
Humans TV Series - Page 35 - The Telegraph
News: Breaking stories & updates - Page 1616 - The Telegraph
Watch how Figaro the cockatoo uses a tool kit to nab a nut
Cockatoos Know How to Pick the Right Tools for the Job - The New
Cockatoo filmed making tools from twigs, wood and cardboard to
Wild cockatoos make utensils out of tree branches to open fruit
Custom-Made Drumsticks Showcase Cockatoo Creativity
WATCH — Cockatoos use toolsets just like we do, Video
Animals - Page 77 - The Telegraph
parrot behavior problems – Pamela Clark, CPBC
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