Hi all, I know this is an old record but stumbled across it and definitely doesn't look like a Fan-tailed Cuckoo. Automatic reaction was Brush. Please let me know if you agree or if you think this bird is a Fan-tailed vs Brush.
There are 2 other CNM records of juveniles from Red Hill and Aranda Bushland and I have also seen them out at Wamboin, so I think it would be plausible for it to be Brush based on location.
There are quite a few records of Brush Cuckoos at Mulligans Flat, and I saw, heard and photographed one in Jan 2017, and recall it was close to the border with Gooroo (see https://ebird.org/checklist/S33751903), so definitely could be Brush.