Journal of the Federated Malay States museums - Sabrizain.org

34 Journal of the F.M.S. Museums. [Vol. VI,
(1902) (Gunong Tahan, Pahang); Ogilvie Giant, Fascic. Malay
Zool. iii, p. 91 (1905) {Pernk, Pahang Boundary, 4,000'); id-
Journ. Fed. Malay States Mus. iii, p. 34 (1908); Robmsi'U torn.
cit. ii, p. 192 (1908); id. Hand-list Birds Malay Penins. p. 14, no.
391 (1910).
Pericrocotus cinereigula, Sharpe, Ibis, 1889, p. 192;
Whitehead, Exploration, Kinabalu, plate to p. 40 (1893).
Pericrocotus wrayi, Sharpe, P. Z. S. 1888, p. 269, pi. xv
(Batang Padang Mountains).
Pericrocotus croceus, Sharpe, P. Z. S. 1888, p. 269 {Gunong
Batu Puteh, S. Perak); Bonhote, P. Z. S. (i) igoi,p. 60 {Gunong
Injs, N. Perak); Ogilvie Grant Fascic. Malay Zool. iii, p. 91
(1905) {Perak-Pahang boundary, 4,000').
Adult male:— Head, nape, mantle, inner and lesser wing
coverts shining black; ear coverts, sides of the face and throat
dark grey. Primaries and secondaries the bases of all the tail
feathers and the greater part of the two median pairs, black;
greater inner wing coverts with their terminal portions scarlet;
Primaries and secondaries from the fifth primary inwards with
their outer webs edged with scarlet, increasing progressively
inwards, the basal half of both webs scarlet orange. Rump
and upper tail coverts scarlet, under surface except the throat
and portion of the tail that is not black, scarlet orange, thighs
mingled black and orange buff or apricot; wing lining edge
of the wing and axillaries orange. Bill and feet black, iris dark
hazel.
Adult female:—Distribution of colour similar to that of the
male, the red throughout being replaced by yellow intermediate
between "Cadmium Yellow" and "Light Cadmium" of
Ridgeway. The black of the upper surface more greyish blue
and less shining than that of the male and the ear coverts of a
paler grey. Chin and upper throat greyish white. Thighs
mingled white and brownish black. This is the stage described
as P. croceus by Ogilvie Grant {Fascic. Malay, loc. cit. p. 91.)
Immature.—The immature of both sexes are similar to the
adult female, except that the head and mantle are of a paler
grey, with much less gloss and the yellow of the rump and
upper tail coverts has a strong cast of olive, while the bases of
the feathers are broadly grey, giving an impression of ill-defined
cross barring. This is the stage figured by Sharpe {loc. cit.) as
the adult female of P. wrayi. The adult male plumage appears
to be attained from this stage in part by a moult of the yellow
feathers and in part at least by a direct colour change, though
by the majority of authorities on moulting this is roundly
asserted to be impossible.
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Juvenile.—Younger birds still resemble the immature
female but have a greenish tinge over the grey of the upper
parts, the ear coverts even paler grey and the feathers of the
head and mantle narrowly edged with dirty white.