170 TURDINE, 
Bill black ; irides brown; legs black. 
Male throughout of a dull indigo-blue, more or less marked with 
dusky, and the feathers of the abdomen, vent, and under tail- 
coverts, pale tipped, in some specimens with a tinge of deep 
ferruginous on the feathers of these parts. 
The female is dingy greyish-brown, with a faint blue or ashy 
tinge, greyish on the tail; some of the feathers edged with 
whitish, and the under parts fulvescent-greyish, with dusky cross 
bands, some being rufescent on the lower parts, especially on the 
vent and under tail-coverts. 
The Blue Rock Thrush is a common winter visitant throughout 
the region, arriving during October and leaving about April ; it is 
very solitary in its habits, and appears to frequent the same loca- 
lity, not only throughout the season, but for several successive 
ones Jerdon records that “it is supposed to be the sparrow of 
our English version of the Scriptures that sitteth alone on the 
house tops.” 
Monticola cinclorhynchus, 7/79. 
353.—Orocetes cinclorhynchus, Vig.—Jerdon’s Birds of India, 
Vol. I, p. 515; Butler, Guzerat ; Stray Feathers, Vol. ITI, p. 
470; Petrophila cinclorhynchus, Vig.; Deccan, Stray Feathers, 
Vol. IX, p. 398 ; Murray’s Vertebrate Zoology of Sind, p. 130; 
Swinhoe and Barnes, Central India ; Ibis, 1885, p. 67. 
THE BLUE-HEADED CHAT THRUSH. 
Length, 7°5 ; expanse, 11°5; wing, 3°8 to 42; tail, 2:8; tarsus, 
0°85 ; bill at front, 0°6 ; bill from gape, 1:1. 
Bill brownish-black ; irides hazel-brown ; legs plumbeous. 
Male.—Head, nape, and shoulders of the wings, pale-blue ; lores, 
ear-coverts, back and wings, black, tinged with dusky-blue on 
the back, and on some of the wing-coverts and quills; a white 
wing spot, formed by a white bar on the outer webs of the 
secondaries ; rump and upper tail-coverts ferruginous ; tail black, 
edged with blue; chin pale-blue ; breast, abdomen, and under tail- 
coverts ferruginous. 
Female.—Brownish-olive above, yellowish-white beneath, tinged 
with rufous on the breast, and barred crosswise with olive-brown. 
During the cold weather the Blue-headed Chat Thrush is 
generally distributed throughout the region, but occurs much more 
rarely in Sind. It is solitary in its habits. 
Grnus, Geocichla, Kuhl, 
Bill moderate, stout, compressed, straight ; culmen gently arched 
throughout, tolerably hooked at the tip, and slightly notched ; 
nostrils lengthened ; asmall nude spot behind the eye ; wings and 
tail moderate, or rather short ; tarsus slightly lengthened ; lateral 
toes short, nearly equal. 
