Thayetmyo, south Myanmar.
May warrant placement in a separate genus, alongside some other bulbuls of SE Asia and Sundaic region. Recent molecular and acoustic analysis, supplemented by field observations but not specimen evidence, found that race conradi is genetically deeply divided from nominate but does not differ in voice (confirmed here by analysis of few available recordings), and differs only in minor plumage characters except for iris colour, whitish or grey vs reddish#R. Iris-colour notation on material in NHMUK confirms this difference in 46 Thai specimens, but those from S Vietnam and adjacent Cambodia problematic: of 15 specimens, 6 had iris “brown”, 3 “ochre-brown”, 1 “ochraceous”, 1 “yellow”, 2 “grey-brown”, 1 “grey” and 1 “white”. Setting this matter aside, conradi differs in its slightly larger size (effect size for male bill 1.38, score 1); slightly more pronounced yellowish supercilium (1); slightly yellower underparts, most constantly around vent (1); and white/grey vs reddish iris (with reservations allow 3); further study needed. Proposed race robinsoni (Malay Peninsula) is indistinguishable from conradi. Birds reported from N & C Laos not subspecifically identified. Two subspecies recognized.
Also (subspecies undetermined) N & C Laos.
Food and feeding
Status and conservation
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