The Speckled Warbler lives in a wide range of Eucalyptus dominated communities that have a grassy understorey, often on rocky ridges or in gullies.
Typical habitat would include scattered native tussock grasses, a sparse shrub layer, some eucalypt regrowth and an open canopy.
Large, relatively undisturbed remnants are required for the species to persist in an area.
The diet consists of seeds and insects, with most foraging taking place on the ground around tussocks and under bushes and trees.
Pairs are sedentary and occupy a breeding territory of about ten hectares, with a slightly larger home-range when not breeding.
The rounded, domed, roughly built nest of dry grass and strips of bark is located in a slight hollow in the ground or the base of a low dense plant, often among fallen branches and other litter. A side entrance allows the bird to walk directly inside.
A clutch of 3-4 eggs is laid, between August and January, and both parents feed the nestlings. The eggs are a glossy red-brown, giving rise to the unusual folk names ‘Blood Tit’ and ‘Chocolatebird’.
Some cooperative breeding occurs. The species may act as host to the Black-eared Cuckoo.
Speckled Warblers often join mixed species feeding flocks in winter, with other species such as Yellow-rumped, Buff-rumped, Brown and Striated Thornbills.