It is endemic to Borneo,[2] where it appears to be separated altitudinally from the nominate subspecies, and is often considered now to be a full species, Rhizothera dulitensis.
Like the long-billed partridge, it is mainly rufous-buff in colour, with a lavender-grey breast-band, a long, black, curved bill and yellow legs.
It differs from the long-billed partridge in that the grey breast band is twice as wide, and the underparts are whitish-buff rather than bright orange-buff.
[3] Orenstein et al. (2010) suggest that the partridge may be seriously threatened by habitat degradation and hunting, and that an important conservation priority is its rediscovery.
[3] BirdLife International considers that it may have been in rapid decline because of habitat destruction and degradation, and that its taxonomic status should be investigated.