240 MOTACILLIN~. 
broader on the second, and extending over part of the outer web; 
the next narrowly edged with white; upper tail-coverts like the back. 
The female has a white supercilium; the head and crown 
duller, mixed somewhat with greenish later in the year; the chin 
is white, and the throat a yellowish or buffy-white ; breast and 
under parts pale-yellow ; back greyish-brown. 
The Grey-headed Field Wagtail occurs both in the Deccan 
and in Sind. It has apparently been overlooked in Guzerat and 
Rajputana. 
They are difficult birds to deal with, and Jerdon did not discri- 
minate the two last species. 
The following key by Mr. Brooks will assist greatly in helping 
collectors to discriminate the three species :— 
B. flava.—Grey head, broad white supercilium, grey and white 
cheeks. 
B. cinereocapilla.—Dark-grey head, supercilium absent or else 
very narrow and white ; often only half a supercilium 
behind the eye; cheeks a dark slate color or almost 
black. This dark cheek is the well marked peculiarity of 
the species. 
B. melanocephala.—Pure black head, with very rarely indeed 
a supercilium, and then very narrow, like a thin white 
thread. 
The black head is a good distinction. 
Budytes calcarata, Hodgs. 
594—B. citreola, Pallas—Jerdon’s Birds of India, Vol. II, 
p. 225 ; Murray’s Vertebrate Zoology of Sind, p. 169. 
THE YELLOW-HEADED WAGTAIL. 
Length, 6:5 to 7; extent, 105; wing, 3:25 to 3°5 ; tail, 3°5 ; bill 
at front, 0°48. 
Bill black ; irides brown ; legs black. 
Entire head, chin, throat, breast, and under surface, bright 
yellow; back, rump, and upper tail-coverts dark-brown, nearly 
black; lesser wing-coverts dark-grey ; median and greater wing- 
coverts dark-brown, margined and tipped with white; the ter- 
tiaries broadly margined with white; primaries and secondaries 
on their outer webs, dusky on their inner, and with whitish 
margins; tail dark-brown or black; the feathers very narrowly 
edged with greenish ; the four outermost white, except a dusky- 
brown margin on the inner web for three-fourths their length. 
In winter the adult is light ashy-grey above, the nape and 
sides of the breast darker ; head and under surface yellow, oli- 
vaceous on the flanks ; primaries dusky, edged with greyish-white 
on their outer webs ; secondaries dusky ; tertiaries darker, broadly 
margined with white; wing-coverts brown, broadly tipped with 
white, forming two conspicuous wing-bands; lower tail-coverts 
albescent or very pale-yellow; tail as in the b&eeding plumage. 
wy 
SS? 
