138 



INSECTIVOR^. 



Family MOTACILLIDjE. 



Genus Motacilla. f Latham. J 



Generic Characters. — Beak slender, straight, awl-shaped, 

 cylindrical, and angulated between the nostrils; the edge of 

 the inferior mandible compressed inwards. Nostrils basal, 

 lateral- ovoid, partly closed by a naked membrane. Tarsi as 

 long again as the middle toe; three toes in front and one 

 behind, the outer toe of the three joined to the middle toe 

 at its base; the claw of the hinder toe longer than those in 

 front, which are very small. Tail very long, and nearly even 

 at the end, having twelve feathers. "Wings of moderate size, 

 first quill the longest, second and third equal, and nearly 

 as long as the first. The tertials very long. 



YELLOW-HEADED WAGTAIL. 



Motacilla citreola. 



Motacilla citreola, Pallas; Voy., vol. iii., p. 696, 1776, 



Gmelin; Syst., i., p. 962, 1788. 

 Latham; Ind., 1790. 

 Temminck; Man., p. 259, 1820. 

 " " Keysehling and Blasitjs; Die 



Wirbelt, 1840. 

 " '^ ScHiNZ; Europ. Faun., 1840. 



" " SCHLEGEL, 1844. DeGLAjSTD, 1849. 



" " Midden DOEFE; Sibirische Eeise, 



ii„ p. 163. 

 Biidytes citreola, Bonaparte, 1838. 



