Notes: Nominate capestris & ssp rubiginosus similar;
isabellinus larger, more rufous above, less & finer streaking on crown &
below; wayensis resembles previous, but crown streaks slightly broader,
underparts w. strong buff suffusion; hartogi paler, faintly rufous upperparts w.
strong dark streaks, whitish w. moderate to fine streaking below; winiam
large, w. longish & slender decurved bill, plumage greyer than nominate, very
prominent streaking. See also Western Fieldwren.