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Palm Cockatoos are the rockstars of the bird world, but are their drumming displays an ancient instinct or a clever mimicry of human behaviour? Rob Heinsohn and Christina Zdenek report

Iron rangeTorres straitLockhart riverCape york peninsulaCape yorkGraham woodKuuku yauPhil collinsRingo starrChristinan zdenekDavid stoweChristina zdenekspeculateRob heinsohnUniversity of queenslandConservation biology at australian national universityPalm cockatoos