121 
Trides, yellow. Bill, blackish horny; blue at gape, base of 
lower, and sides of upper, mandible. 
Tongue small, somewhat fleshy bluish and lke lower 
mandible, dusky at tip; obtuse ended, with a conspicuous 
depression down the centre. 
Plumage. The lores, cheeks, chin and throat, slightly 
greyish white. The ear coverts having the faintest possible 
shade of fulvous, and the chin and throat having just the trace 
of a central dark line. 
The whole top and back of the head, a pale rather brownish 
slaty, paler just at the forehead and immediately above the 
eyes. Sides of the neck, behind the ear coverts, pale fulvous, or 
faintly reddish brown, nearly meeting on the nape; the whole of 
the base of the neck in front, and at sides, the breast, sides, and 
upper abdomen, white, with numerous, close, regular, narrow, 
transverse bars of the same pale faintly reddish brown, closer 
on the upper breast, and wider apart, and slightly feebler lower 
down. ‘The base of the neck behind, shoulders, scapulars, back, 
rump, tail feathers, and their coverts, and whole upper surface 
of the wings, generally slaty. The first five primaries being 
dusky at the tips, and all the primaries, winglet, and anterior 
portion of wing, being a shade darker. In the basal portion of 
the scapulars probably more than half the feathers are white, 
though this, owing to the over-lapping of the feathers is little 
seen; about half the imterior webs of all the quills (except the 
first four primaries in which the white only begins above the 
notches) white, all, with several incomplete moderately broad 
transverse dark bars in the inner webs, which are faintly visible 
even on the dusky tips of the early primaries. ‘The central 
tail feathers have darker patches on their shafts, corresponding 
with the transyerse bars on the lateral feathers, but no bars, 
narrow white tips, or subterminal dark bands. The lateral tail 
feathers all with narrow white tips and an oblique patch of 
white on the inner webs on the basal halves, and the rest of the 
inner webs rather lighter than the outer. All the lateral 
feathers but the outermost with a pretty broad subterminal 
dark band, and four somewhat narrower similar dark transverse 
bands, traceable on both webs but much more conspicuous on 
the inner. The exterior tail feathers are browner and less slaty 
than the rest of the tail, have no subterminal band, and seven or 
eight narrow, brownish, transverse bands on the inner web only. 
The lower part of abdomen, vent, thigh coverts, flanks, and lower 
tail coverts, pure white. The lower surface of the tail, greyish 
white, the broad blackish bars of the four lateral feathers on 
each side showing through conspicuously, and the narrow bars 
