THE BLUE FACED HONEYEATER - i think these may be nesting too, i watched this one last night working his way up and down this tree trunk, often upside down, finding quite large insects and taking them back to another tree. Again and again. there are at least two of these around. not a great shot - i took a lot but the bird was always behind grasses and small branches.
I also have a little family of white plumed honeyeaters, much smaller than this. i think there are about four or five young ones busy exploring the garden en masse.