their website still lists six animals. But there should only be one male there now. I have no idea which of the two males is no longer there, or why. It's possible the other male may have gone to Tasmania though (but that is purely a guess). It's possible I'm wrong too, but my source should be accurate.
I read in a 2015 post that the young male Kouilou was running into conflict with his father, so I'm guessing Kouilou may have been exported. In addition, Kouilou can't mate with 2 of the 3 Adelaide females of reproductive age as he's the son and half brother of two of them; Tabah can't mate with only 1 of the 3 Adelaide females of reproductive age, his daughter.