WARNING: Aboriginal and Torres Strait Islander readers are warned that the following language website may contain images, voices or names of deceased persons in video, audio recordings or printed material.
This is probably a 'nickname' term, kurrk means 'red', and it may refer to the long pink beak; the term one would have expected is pathanggal, as in Mathimathi. (image - Nyan-Kurrk - Pelican by David Hughes - Bird Photography Australia - Facebook - with permission)