Formerly treated often as conspecific with A. vigorsii. Until recently considered conspecific with A. magnifica, which see. Geographical variation seemingly well marked, but a review of taxa indicates a cline from the large seheriae (with long green tail) E and S to the small Sundaic taxa (with short blue tail). Three subspecies groups based largely on differences in female plumage, male iridescence, and presence or absence of tail extensions#R. Conversely, poorly differentiated heliogona may better be synonymized with nominate; also labecula with seheriae, these two intergrading in N West Bengal and Bhutan. Nominate race intergrades with trangensis on W coast of Malay Peninsula. Many additional races described, all considered insufficiently distinct to warrant recognition: thus, off W Sumatra, tinoptila (from Pulo Siumat, near Simeulue I), heliophiletica (Pulo Bangkaru, in Banyak Is), niasensis (Nias I), melanetra (Pulo Lasia), siberu (Siberut I) and photina (North Pagai I) are included in nominate, as also is ochropyrrha (Pulo Rittan, in Anamba Is); mussooriensis (Mussoorie, N India) and miles (Nepal) subsumed into seheriae; terglanei (Bangladesh), andersoni (Sawaddy, E of Bhamo, in N Myanmar) and viridicauda (Tengyueh, in Yunnan, in S China) all included in labecula; and heliotis (Domel I, in Mergui Archipelago) synonymized with cara. In addition, there may be a further undescribed race in Bangladesh. Fourteen subspecies recognized.
Food and feeding
Status and conservation
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