Bold-striped Tit-Babbler (Mixornis bornensis) [XC423123]
by Hobart WQH from Sibu, Bahagian Sibu, Sarawak, Malaysia (song)
Bold-striped Tit-Babbler (Mixornis bornensis) [XC661318]
by Okamoto Keita Sin from Sandakan District (near Sandakan), Bahagian Sandakan, Sabah, Malaysia (call, song)
Subspecies
Macronous gularis (Sibley and Monroe 1990, 1993) has been split into Pin-striped Tit-Babbler (Mixornis gularis) and Bold-striped Tit-Babbler (Mixornis bornensis) following Collar (2006).
Proposed subspeciess ruficoma (from islands of Bangka and Belitung) and pontius (from Pulau Laut, off south-eastern Borneo) regarded as synonyms of nominate.
The following 8 subspecies are recognised:
zopherus (Oberholser, 1917) - Anamba Is, east of Peninsular Malaysia.
everetti (Hartert, 1894) - Bunguran, in northern Natuna Is.