582 BLACK-THROATED BUNTING. 
bright yellow. The fore part of the back greyish-brown, with longitu- 
dinal streaks of brownish-black ; the hind parts brownish-grey. The 
smaller wing-coverts are bright chestnut, the quills and large coverts 
blackish-brown, the primaries narrowly, the secondaries and their co- 
verts broadly edged with pale greyish-brown. The tail is dark grey- 
ish-brown, the feathers faintly margined with paler. The fore neck is 
light yellow, the throat at first white, then with a large patch of black ; 
the breast, sides, abdomen, legs and lower tail-coverts white, the breast 
tinged with yellow, the sides with grey ; the lower wing-coverts yellow. 
Length to end of tail 63 inches, to end of wings 5, to end of claws 
61; extent of wings 103; wing from flexure 33; tail 23 ; bill along the 
ridge 7, along the edge of lower mandible 3 ; tarsus 1; hind toe 44, 
its claw ?4 ; middle toe 7%, its claw #. 
Adult Female. Plate CCCLXXXIV. Fig. 2. 
The Female has the upper parts coloured as in the male, but paler ; 
the lower parts are also similar, but in place of the black patch on the 
throat, there are only two dusky lines from the base of the lower man- 
dible, and some faint streaks on the lower part of the neck and the 
sides. 
Length to end of tail 6, to end of wings 4, to end of claws 52; ex- 
tent of wings 9; wing from flexure 3 ; tail 2;% ; bill along the ridge % ; 
tarsus '$ ; hind toe #4, its claw 7, ; middle toe 7%, its claw 34. 
Tn an adult male, the roof of the mouth has anteriorly three longi- 
tudinal ridges, and two lateral grooves ; the palate descends obliquely, 
and at its anterior part has a distinct prominence of a softish texture ; 
from which there passes backwards and outwards, a large soft ridge on 
each side of the nasal aperture ; which is linear and papillate. The 
tongue is 53 twelfths long, narrow, deep, trigonal, deeply emarginate 
and papillate at the base, soft for half its length, convex and hard to- 
wards the end, which terminates with bristly points. The cesophagus, 
a bcd, is 23 inches long, dilated along the greater part of the neck into 
a kind of crop, 0, 5 twelfths in diameter, lying on the right sidealong with 
the trachea. The proventriculus, cd, is not much enlarged. The stomach, 
ef, is astrong gizzard, of a broad elliptical form, 7} twelfths in length, 
64 twelfths in breadth. Its contents are small hard seeds, a few remains 
of insects, and some particles of sand. The epithelium is very tough, 
