I just spoke to my friend via Facebook, I have not actually seen him for 30 years, he lives in Perth and said there are hundreds on staghorns all over the place.
The one he has lives in a tree in his back garden and (jokingly) said it actually eats banana skins in a few days !
Apparently in the summer and just after rain, if he puts a skin on it, it will be covered over by new growth and literally disappears in a day or so!
Waiting for a photo......
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This post actually made me remember something about my childhood in Sydney - my next door neighbours had a massive staghorn hanging on their back porch and they would indeed feed it banana skins - you could watch the damn things vanish over a few days just like the plant was sucking them into the root/rhizome thing there at the base!