Hi BlackFlat, it appears the species you suggested is Yellow-tinted Honeyeater (now Ptilotula flavescens). This species is similar, but occurs in northern Australia. You may find this link helpful (https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:0a8ce871-e5be-4788-aef8-15dd55c104dd).
Your picture is of Fuscous Honeyeaters, which are local to the region.