Good to see a local involved in the research. Not sure why they also need an African dude, considering how far away from Africa that they are.
Guessing aborigine.
He’s an aborigine.
“Aboriginal people from Galiwnku Island...”
https://cdn.britannica.com/73/126573-004-FFBB60EA/proceedings-Aborigines-Kevin-Rudd-Galiwnku-Island-peoples-February-2008.jpg