Striated grasswrens may be active throughout the day, and in warm temperatures (over 35 °C) may be observed thermoregulatuing by holding wings partly open, but are generally more active in the early morning and late afternoon [REF].
Striated grasswrens are insectivorous and grainivorous, foraging on the ground amongst leaf-litter and open areas, and gleaning from the foliage of herbs, forbs and low shrubs for primarily beetles and ants, and seeds of spinifex (Triodia) and other plants [REF].