You’ll hear them, but you will never see them. That seems to be the conventional wisdom. But I did see them, and, admittedly serendipitously, one of many random photo attempts came out.
This is taken on a walk worth doing at Point Cook, between Geelong and Melbourne, on the edge of the Bay. It was a very cold and extremely windy day, so birds were uncommon. But well worth going back to on a nicer day.
The ubiquitous White-faced Herons featured. I believe there is a global system they have in place, to ensure there is a least one at every water hole. This appears to be in breeding plumage.