This is a bigger owl than the southern boobooks that are seen every night. It flew away and abandoned its prey shortly after I snapped these two photos. On closer inspection, the killed prey was a wandering whistling duck. There is a dam nearby. I then left as quickly as possible, hopefully it returned to its meal. There was no trace of the duck left the following morning.

ID by Geoff Walker.

Bowerbird.org.au sighting being moved to iNaturalist because the former website is shutting down.