Common name for a 10.5 to 11.5 centimeters tall sunbird, with the binomial name
Cinnyris asiaticus and with the Thai designation
nok kin plih dam muang. Breeding males appear
to be all black, but their head, nape, mantle and breast, actually have a
metallic bluish-purple iridescence, which becomes better visible in certain
lighting (fig.), whilst the wings and tail are mostly dark brown, and the belly and
vent dark grey to purplish-black (fig.).
breeding season, they have a maroon shine on the feathers
of the collar around the neck. On the side of the breast, near the shoulders,
they also have two yellow
tufts, with a some orange colouring at the base, which it might disclose in
display (fig.). Females
(fig.) are olive above and yellowish to whitish
below, with a darker yellow on the breast, that gradually gets lighter towards
the paler vent (fig.).
They also have a darkish eye stripe and a pale
supercilium beyond the eye. The legs and
feet, as well as the bill of both sexes is dark grey to blackish.