I very much doubt it.
Look, I've been a Freeper here, for five years now. I'm an Australian citizen and I know what Australian birth certificates look like. The Bomford certificate looks exactly like an Australian birth certificate.
This is a certified copy of my own birth certificate from last year (with identifying details removed).
It shows the standard form of an Australian birth certificate. This one looks slightly different from the Bomford because with modern technology, they can print the whole thing from the records, with printed seal, etc, as well as more security features (background printing etc, than they used to when things were harder to copy) - I used to have certified photocopies (I can't find one right now - I think I may have shredded them last year when I got this new one because they were becoming very tattered - why I got a replacement) from the 1970s and 1980s, and they looked virtually identical to the Bomford certificate.
Calling him a fraud because he has a birth certificate that looks like a birth certificate in Australia should look is ridiculous.