Breeding
The Diamond Firetail builds a nest with green grass blades and stems and lines it with fine grasses and feathers. The nest can be found in trees and shrubs with dense foliage and has sometimes been known to build in the base of a hawk's nest. The nest is built by both partners but only the female does the weaving. Both partners incubate the eggs and care for the young. Usually only one clutch is laid per season.