The Yellow-plumed Honeyeater nests in loose colonies or singly, with aggressive defence of the nesting territory by the males, with some evidence that groups of birds hold territories together, and will repel intruders as a group. The open, cup-shaped nest is suspended by the rim from a thin fork or from foliage of mallee eucalypts and other small shrubs. It is made from wool, green grass and spider-webs, lined with wool, grasses, plant-down and brightly-coloured feathers. Both parents feed the young, sometimes with the assistance of helpers. This species is parasitised by Fan-tailed Cuckoos, Pallid Cuckoos,Horsfield's Bronze-Cuckoos and Shining Bronze-Cuckoos.