This is what comes in the email
"
What we request you bring
Along with this letter, we request that you bring the original version of the following documents to your appointment. The Document Checklist will assist you to identify acceptable documents. Photocopies or certified copies of documents are not acceptable. We request that you bring:
at least three documents that, all together, show your birth name, date of birth, gender, photograph, signature and current residential address
official evidence of change of name showing links between all names used
any other identity documents issued by another government that you consider will assist in verifying your identity
evidence of when you first arrived in Australia and your present country of citizenship
the documents that were submitted with your application
documents for any children under 16 years of age included in your application
official translation to accompany any documents which are not in English (see Translating your documents)
any other documents that we have requested you to provide."
It doesn't specifically ask for a birth certificate unless you have uploaded it as evidence in your application.