Amy Esther Pratt - Amy Esther's date of birth

Her date of birth has been set as 1872, and the NSW BDM record has her born in that year (Ref. 18700).
But there is also a listing for Amy E Pratt, daughter of George and Esther, born in 1865 (Ref. 16059)

A PDF showing these records has been uploaded to Geni, and is listed in the Sources tab:
https://www.geni.com/documents/view?doc_id=6000000090950789916&