. Catalogue of the Birds in the British Museum. 4. PTiLOTis. 223 than olive, yellow, white, and hrown (with their combinations) in the plumage. Ear-coverts alwa3's difFerentlj' coloured from tlie rest of the head, frequentlj- silkj- grey. P. unicolor is not separable from the genus, except by its uniform dull-brown coloration. Length of wing 2'-i5-4'5 Head of Ptilotis sonora. Range. Austro-Malayan, Australian, and Polynesian Regions. Key to the Sjjecies. a. No pronounced yellow ear-patches; all the underparts rich yellow, including under sur- face of wing; upper parts rich greenish ye
. Catalogue of the Birds in the British Museum. 4. PTiLOTis. 223 than olive, yellow, white, and hrown (with their combinations) in the plumage. Ear-coverts alwa3's difFerentlj' coloured from tlie rest of the head, frequentlj- silkj- grey. P. unicolor is not separable from the genus, except by its uniform dull-brown coloration. Length of wing 2'-i5-4'5 Head of Ptilotis sonora. Range. Austro-Malayan, Australian, and Polynesian Regions. Key to the Sjjecies. a. No pronounced yellow ear-patches; all the underparts rich yellow, including under sur- face of wing; upper parts rich greenish yellow JJava, p. 246. 6. Throat gamboge-yellow; crown and fore neck ashy grey ; mantle dark j-ellowish olive .... Jiavigularis, p. c. Bright yellow postauricular tufts, followed by elongated featliers on sides of neck; throat ashy browTi, much barred with j'ellow ; upper parts ashy brown fasciogidaris, p. 240. d. Ear-coverts pure white; throat black; crown ashy grey leucofis, p. 240. e. Ear-coverts forming a bright orange patch ; feathers of underparts bright yellow, with darker centres; cheeks with dull whitish stripes maculatn, p. 232. /. With a small, white, postauricidar patch ; ear- coverts yellow ; a black streak through the eye; tinderparts with dull streaks. a'. Crown and mantle earthy brown; upper half of ear-coverts dark grey; underparts of bodv dingy yellow, with duU whitish , „.,, streaks .?^... 'ZT'l 23" b'. Cheeks, ear-coverts, and rmderparts yellow ; ' '>?•'• the latter with dull streaks; upper parts brownish olive versicolor, p. 234. c'. Cheeks black ; upper parts earthy brown . chr!/soj)s, p. 230. ff. Ear-coverts and ocular region yellow ; feathers of neck lanceolate; upper and under parts with dusky streaks provocafor, p. 230. h. Yellow feathers on sides of head forming a conspicuous patch; ocidur, or auricular, re- gion bare. d'. Mantle and breast spotted; ocular region bare poli/f/raiiiiua, p. 233. e'. Mantle and breast not spotted ; ocular
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