MOTACILLIN^. 



167 



Head, nape, sides of the face and back pale grey, with an olive tinge ; 

 rump and upper tail-coverts pale greenish yellow; chin, snpercilium 

 and throat white, rest of under surface yellow, purest on the middle 

 of the abdomen, under tail-coverts and flanks ; primaries dusky brown, 

 lighter on the margin of their inner webs, and darker on the outer; 

 secondaries dusky brown, white on both ■\vebs at their bases, forming a 

 conspicuous wing band ; tertiaries dark brown, also white at their bases, 

 and edged on both webs with yellowish, narrow on the outer, and broad 

 on the inner webs, being a continuation of the basal white patch; tail 

 dark brown, nearly black, the feathers with greenish yellow edging, the 

 outermost feathers white, and dark shafted ; the next also white, both 

 the shaft and outer web for three-fourths their length dark brown; bill 

 black ; legs pale brown; irides brown. 



Length. — V'25 to 7'5 inches, wing 2-25 to 2-5, longest tei-tiaries the 

 length of the first three primaries, tail 3'8, bill at front nearly 0"5. In 

 summer plumage the chin and throat are black, and the under parts 

 dark yellow. 



Mai). — Central and Southern Europe, N. E. Africa, Australia and 

 Asia Minor. Occurs throughout India to Nepaul and Ceylon as a winter 

 visitant; also in Sind, Punjab, and N. W. Provinces; Beloochistan, 

 Persia and Afghanistan; Kutch, Kattiawar, Jodhpore, Jeypore, North 

 Guzerat, Concan, Deccan, and Central and Southern India. 



Gen. Budytes. — Cm. 



Characters same as those of MotacilJa. Tarsi longer ; longest tertiary 

 equal to the fifth primary, or intermediate in length between the fourth 

 and fifth ; hind toe and claw longer. 



The following is a key to the species of this genus in summer plum- 

 age, given by G. F. L. M. in Stray Feathers, vol ix. : — 



A. With the entire head yellow. 



Entire back black, — 1 B. calcaratus. 

 Back grey. — 2 B. citrsola. 



B. Top of head pure black, supercilinm narrow or wanting. — ■ 



3 B. vielanocephala. 



C. Crown yellowish green, supercilium broad and yellow. — 



4 B. rayi, 



D. With the ci'own grey. 



Crown pure light grey ; supercilium white, broad ; cheeks 

 pale grey or pale white. — 



B. duhms = B. heema, Sykes. 

 Crown deeper grey, supercilium white, broad ; cheeks dark 

 grey, with a few white streaks. — 



B. flavus. 

 Crown dark grey ; supercilium white, narrow or wanting ; 

 cheeks dark slaty, almost black. — 



B, cinereocajnlliis. 



