Good question Matthew. If you play around with the Distribution map, you can go way back in time. There are lots of old records from government sources, eg NSW BioNet Atlas. See this one from 1946: https://canberra.naturemapr.org/Sightings/4211812 And 1936: https://canberra.naturemapr.org/Sightings/4226927 And 1904: https://canberra.naturemapr.org/Sightings/4223996