Goffin’s cockatoos take a tool set to work on a puzzle box, a rare example of pre-planning in the animal kingdom.
. This crested, white-feathered Indonesian bird crafts what are essentially crowbars, ice picks, and spoons to pry open its favorite fruits, making it one of very few species to not only use tools, but fashion an entire tool set. Now, researchers have shown the cockatoos appear to plan ahead for the job, toting with them the tools needed to solve a puzzle.
Most of the birds used both tools across 15 testing sessions. They picked up the pointed stick with their beaks, reached it through an opening in the box and stabbed the screen. This stick was too short to reach the nut, however, so the birds dropped it in favor of the longer straw, which they used to knock the nut off the platform and into a dispensing tray.
Like most of us, the cockatoos weren’t excited to climb a ladder twice to do a job, although some did anyway. One bird quickly figured out it could fit the pointed stick inside the straw and carry both together to the box, where it adeptly separated them and used them to poke the screen and knock off the nut. Ultimately, four birds came up with this method ofthe need for the tool set,” says Antonio Osuna-Mascaró, an evolutionary biologist and the study’s lead author.
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