Page 16 - BBC Focus - August 2017
P. 16

DISCOVERIES
       DISCOVERIES


















































                                                                                                Dave the cockatoo had
                                                                                                been practising for his
                                                                                                Counting Crows audition

         ZO O L O G Y

       COCKATOOS GOT RHYTHM


       Birds might generally be better known for their   School of Environment and Society analysed
       singing, but new research carried out by Prof   seven years’ worth of footage of 18 male
       Rob Heinsohn from the Australian National   cockatoos, and found that all 18 of the birds
       University (ANU) has proved they can also be a   drummed regularly.
       dab hand on the drums.                        “The large smoky-grey parrots fashion thick
        The palm cockatoo – also known as the goliath   sticks from branches, grip them with their feet
       or great black cockatoo – is native to New Guinea   and bang them on trunks and tree hollows, all
       and to Australia’s Cape York Peninsula, an area   the while displaying to females,” said Heinsohn.              PHOTOS: C ZDENEK, CHRISTINE DANILOFF/MIT  ILLUSTRATION: DANIEL BRIGHT
       of untamed wilderness in the far north of   “The icing on the cake is that the taps are almost
       Queensland. It was here that Heinsohn’s team   perfectly spaced over very long sequences, just
       were, for the first time, able to capture enough   like a human drummer would do.”
       film of the reclusive species’ drumming       What’s more, each cockatoo was found to have
       behaviour, which had previously been reported   its own signature style, with some drumming
       anecdotally, for serious study. The footage was   faster or slower, and others introducing
       obtained as part of a wider study into the bird’s   distinctive flourishes to the otherwise regular
       conservation needs.                         beat. It’s thought that this enables other
        Heinsohn and his team at the ANU Fenner    cockatoos to determine who is drumming where.



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