Details on how to report a bird here, but you need the details of the bands on both legs: https://www.dcceew.gov.au/science-research/bird-bat-banding/get-involved/report-band-sightings
Thanks @MatthewFrawley After the Homing Pigeon at Frank & Jacks saga, I figured that the incomplete numbering wasn’t going to get me real far. Will have a look into that reporting system. Appreciate the info.