Black-crowned White-eye (Zosterops atrifrons) [XC89375]
by Mike Nelson from Sulawesi: above Poo Po near Kotamobagu, Indonesia (song)
Black-crowned White-eye (Zosterops atrifrons) [XC95378]
by Frank Lambert from north-east of Kawalu, Peleng (site 2), Indonesia (dawn song)
Subspecies
Zosterops atrifrons (Sibley and Monroe 1990, 1993) has been split into Black-crowned White-eye (Zosterops atrifrons), Sangihe White-eye (Zosterops nehrkorni) and Seram White-eye (Zosterops stalkeri) following Rasmussen et al. (2000b).
Forms a superspecies with Cream-throated White-eye (Zosterops atriceps), Togian White-eye (Zosterops somadikartai), Sangihe White-eye (Zosterops nehrkorni), Seram White-eye (Zosterops stalkeri), Green-fronted White-eye (Zosterops minor), Tagula White-eye (Zosterops meeki) and Bismarck White-eye (Zosterops hypoxanthus). Was formerly sometimes treated as conspecific with all except first two of those. Is ecologically and behaviourally close to Black-ringed White-eye (Zosterops anomalus), with vocal resemblance also, and has in the past been considered its sibling species in northern Sulawesi. Subspecies may constitute two separate species, nominate subspecies and surdus representing one species and sulaensis and subatrifrons the other. The latter would then include birds of this species found near L Matano (northern end of south-eastern peninsula of Sulawesi, more than 100 km from nearest known population), having relatively long tail and distinctive plumage (distinct yellow rump, golden-yellow throat, yellow undertail-coverts, white rest of underparts, legs dark grey), which presumed to represent an undescribed subspecies.