ASSAM, SYLHET AND CACHAR. 277 



ia having lost the yellow superciliary stripe over the ear-coverts, 

 and being only dusky, and not yet black, about the base of the 

 bill. B. sulphurata, which I have from Amoy, is quite distinct ; 

 not black about the base of the bill, all yellow below, and the 

 cap a much brighter, yellower, more vernal green than in 

 spodocephala, but to judge from the plate, I confess, I should 

 have doubted the distinctness of yersonata. 



In the quite adult male, as I make out, the lores and an ill-de- 

 fined band all round the base of the lower mandible (including 

 the chin) and a similar band round the eyes (growing dusky 

 posteriorly) are black; throat and entire breast, ear-coverts, 

 sides of neck, forehead, top, back and sides of head, nape and 

 a portion of the upper back, unmarked, greyish olive green 

 above, decidedly yellower below. Many specimens show a few 

 brown spots on either side of the nape, some show more or less 

 blackish spottings, not only there, but all over the crown, at the 

 tips of the ear-coverts, or on the upper throat, some in one 

 place, some in another, some in all these places, some a few only, 

 some very numerous spots. 



The rest of the lower parts a pure yellow intermediate be- 

 tween primrose and sulphur, often, but not always, paling more 

 or less on the lower tail-coverts. Sides and flanks with conspi- 

 cuous longitudinal dusky streaks, blacker, browner or greener in 

 different specimens, and generally with a touch of rufescent or 

 fulvous buff, on more or less of the sides or flanks or both. Ex- 

 ternally, except just at their tips, the tibial plumes are brown 

 of varying shades, at the tips and internally, yellow, like the 

 abdomen. 



The rest of the upper and middle back and scapulars a rather 

 light brown, sometimes a warm wood brown, sometimes an olive 

 greenish brown (and all intermediate shades are observable) ; 

 the feathers centred with blackish brown, so as to produce 

 sparrow-like streakings ; rump and upper tail-coverts un- 

 streaked, uniform, often the same colour precisely as the ground 

 of the back, often greener and with much less brown in the 

 colour, at times only a slightly duller and greyer shade of the 

 head. 



Wings hair-brown, blackish or very deep brown on exposed 

 portions of tertiaries and coverts, and all the feathers margined, 

 and very broadly so on both these latter, with a lighter colour, 

 varying from light chestnut to buffy white, always most rufous 

 on the tertiaries and palest on the tips of the secondary greater 

 and median coverts, but varying very much in different specimens. 



The tail brown, varying much in depth of colour, but always 

 paler on the central, darker on the lateral feathers, and generally 



