Basilan (Steere Exp.); Sulu (Platen); Tawi Tawi (Bourns & Worcester). Malay Peninsula, northwestern Borneo, Java, Sumatra, Lombok, Sumbawa.

“In the adult male in spring plumage the head is brownish chestnut, shading into orange-chestnut on the nape; the rest of the upper parts slate-gray; lores grayish white; no trace of eye-stripe; ear-coverts and cheeks black, the feathers of the former with white bases; innermost secondaries and quills dark brown; wing-coverts nearly black; median wing-coverts white; greater wing-coverts tipped with white; unemarginated portion of outside web of primaries pale slate-gray; tail brown, the outside feather on each side broadly tipped with white, and the next narrowly so; chin, throat, and upper breast black; rest of the under parts white, suffused with ochraceous on the flanks; the feathers of the lower breast with conspicuous fan-shaped black terminal spots, which become obscure on the flanks; axillars, basal portion white, terminal portion dark slate-gray; lower under wing-coverts, basal portion black, terminal portion white; basal portion of inner web of the secondaries and many of the primaries white. Bill dark brown above and below. Wing with the fourth and fifth primaries nearly equal and longest, second primary between the seventh and eighth, bastard primary, 24 to 21.5 mm. Legs, feet, and claws flesh-color. Wing, 108 to 102; tail, 61 to 53; culmen, 19.5 to 18; tarsus, 29 to 28. The adult plumage of the sexes appears to be alike, nor is it known that any important change takes place by abrasion.

“Young in first plumage appear to have the whole of the upper parts dull chestnut, each feather having a pale shaft and obscure pale center; the white bars on the wings are suffused with chestnut, and the black on the under parts is confined to two moustachial lines on the cheeks, the rest being dull chestnut. This plumage is immediately molted to the adult plumage in the first autumn, except that certain birds, which I take to be females, have the slate-gray of the upper parts replaced by dark olive-brown.” (Seebohm.)

534. GEOKICHLA CINEREA Bourns and Worcester.
MINDORO GROUND THRUSH.

Mindoro (Bourns & Worcester, McGregor).

Male.—Above black; feathers of head, neck, back, rump, and scapulars edged with ashy gray; lores white, the hair-like tips of the shafts black; eye-circle white, broken above and below center of eye by a black spot; feathers of jaw and ear-coverts white with black tips, between these areas the cheeks are black; chin feathers white, their shafts with black hair-like tips; remainder of under parts white, the feathers of throat, chest, and sides of body and abdomen with large fan-shaped black tips, forming an almost solid black pectoral patch, but posteriorly becoming gradually smaller; crissum and middle of abdomen without spots and washed with ocherous buff, most heavily on the longer tail-coverts; a dusky wash on flanks; wing-feathers blackish; outer webs of primaries edged with gray; inner webs of quills, except first two, with a diagonal band of light buff or white; alula and primary- and secondary-coverts black; greater and median coverts tipped with white forming two bars; edge of wing white; axillars white, tipped with blackish, these colors reversed on under wing-coverts; tail blackish, outermost rectrices each with a terminal white spot on inner web. Length, about 200 mm. A male measures: Wing, 115; tail, 70; culmen from base, 22; bill from nostril, 13; tarsus, 32; middle toe with claw, 29.

Female.—The only female examined is very similar to the male, but the ocherous wash of the under parts is lighter and the outer webs of the primary-coverts are marked with white forming a short band. Bill black, base of lower mandible whitish; iris very dark brown; legs and nails white. Wing, 112; tail, 63; culmen from base, 22; bill from nostril, 13; tarsus, 30.