Only NERD Cockatoos can solve this puzzle!

I get visited by a lot of cockatoos, but only some are able to solve the puzzles I make for them. Why is this, and what makes a clever cocky? Full testing footage being uploaded to the second channel shortly (day or so) - @moremakersmuse Join the Maker’s Muse Community - 3D Printing Quick Start Guide - 3D Printer Buyers Guide - 3D Printing Essentials -