I know perfectly well why I never posted this one -- an unusually colorful shorebird at Birdworld in Kuranda -- because I didn't know what kind of bird it was.
I've long since misplaced the handout from Birdworld that identified the various residents, but even when I had it I couldn't find this bird on it. So I labeled it unknown and moved on to the macaws and parrots, which were considerate enough to look exactly like their ID pictures.
But the file birdworld unk sat there like a reproach all these months and today I finally flipped through the big field guide and found, much to my surprise, that it's just a cattle egret. I've seen many cattle egrets, mostly in Africa, but I've never seen one that wasn't pure white. Apparently this is their breeding display and in the egret world resembling an avian version of Donald Trump is a real turn-on.