LVSESSORES. 



DENTI1WSTRES. 



PIED WAGTAIL. 395 



MOTACILL1DM. 





THE PIED WAGTAIL. 



Motacilla Yarrellii. 



Afofacilla alia, Wltitc Wagtail, PENN. Brit. Zool. vol. i. p. 489. 

 MONTAGU. Ornith. Diet. 



Pied BEWICK, Brit. Birds, vol. i. p. 231. 



,, White FLEM. Brit. An. p. 73. 



Pied SELBY, Brit. Ornith. vol. i. p. 251. 



JENYNS, Brit. Vert. p. 114. 



Yarrellii GOULD, Birds of Europe, pt. ii. under the 



name of alba in the description, and 

 Yarrellii in the General Index. 

 Bergeronette Yarrellii, TEMM. Man. d'Ornith. vol. iv. p. 620. 



MOTACILLA. Generic Cliaracters. Bill slender, subulate, straight, carinated, 

 angulated between the nostrils, emarginated at the tip ; the edges of both man- 

 dibles slightly compressed inwards. Nostrils basal, lateral, oval, and partly con- 

 cealed by a naked membrane. Wings of moderate size; the first quill-feather 

 the longest, the second and third equal in length, and nearly as long as the first ; 

 the tertials very long. Tarsus much longer than the middle toe ; the outer toe 

 of the three in front joined to the middle toe at its base ; the claw of the hind toe 

 sometimes elongated. Tail of twelve feathers, long, and nearly even at the end. 



