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Distribution.— ^Indist, to the valley of 

 tihe Amur, and China generally ; winter 

 visitant in the Yangtse Valley. 



KEY TO THE WAGTAILS OF THE 

 YANGTSE VALLEY, ADAPTED 

 ' FROM GATES. 

 a. Hind claw much curved, shorter 

 than hind toe ; 



a ' Plumage black, white, and gray ; 

 a " Ear-coverts and sides of the neck 

 always whitewashed ; 



a'" No black streak through the 

 eye; 



a " " Outer webs of greater wing 



coverts entirely white, back black 



or dusky on the mantle ; . . . 



Motacilla leucopsis ; 



h'" Abroad black streak through 



the eye ; 



b " " Gray shoulders and back ; . . 



Motacilla ocularis; 



c " " Shoulder always black, back 



gray in winter black in summer ; . . 



Motacilla lugens ; 



b' Plumage largely yellow and 



green ; . Motacilla boarula ; 



c' Plumage olive green above, black 



bars on breast, white bars on wings ; 



. Dendronanthus indicus ; 



b. Hind claw little curved, longer 



than hind toe ; 



d' Tarsus unmistakably shorter than 

 one inch ; 



d" Crown dark gray, superc ilium 



absent or obsolete, cheeks blackish ; 



. Budytes borealis ; 



e" Orovvn dark blue gray, super- 



cilium very broad and distinct, cheeks 



blackish, ear-coverts streaked white ; 



Budytes flavus si^nillimus ; 



t" Crown green concolourous with 



back, supercilium broad bright yellow ; 



Budytes flavus taivanus ; 



