Clever Cockatoos Bend Hooks into Straight Wire to Fish for Food
Goffin’s cockatoo bending a hook into wire.
Credit: Copyright: Bene Croy
Researchers from the University of Vienna and the Veterinary University Vienna now tested another bird species the Goffin’s cockatoo on the same task setup.
Inserting a hooked tool.
Credit: Copyright: Bene Croy
Several birds mastered the hook bending task and the unbending task. With one bird being able to solve both of them. “Most hooks were bent inside the birds’ beaks at the far distal piece of the straight pipe cleaner and had steeper angles and thus more obvious hooks than the tools produced by Betty the crow. Nevertheless, they used different individual strategies to fixate the rest of the tool during the bending process”
Use of unbent tool on straight tube.
Credit: Copyright: Bene Croy
“These findings are surprising as our cockatoos are neither specialized to tool assisted foraging as the New Caledonian crows nor are they bending sticks during nest construction, but breed in pre-existing tree holes” says Alice Auersperg, the head of the Goffin Lab at the Messerli Research Institute in Vienna.
Retrieval of the reward basket.
Credit: Copyright: Bene Croy
Contacts and sources:
Dr. Alice Auersperg
University of Vienna
Source: http://www.ineffableisland.com/2017/09/clever-cockatoos-bend-hooks-into.html
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I had (many years ago), a Sulfur Crested Cockatoo that knew how to turn the key left in a lock (of its locked cage) and get out, by removing the unlocked lock and sliding its vertical door up.
I didn’t believe it ’til I set up a camera, while I was away for the day.
Calling someone a ‘Birdbrain’, doesn’t mean they’re stupid.