272 MOTACILLID^. 



M. alba undoubtedly sometimes crosses. A pair of birds presented by Lord 

 Walsingham with their nest and young birds, to illustrate the breeding of the 

 Common-Pied Wagtail of England (M. lugubris), proved to belong, the 

 male to M. alba, and the female to M. lugubris. Mr. Seebohm informs us that 

 in winter he has always seen the two consorting in flocks in the south of 

 France ; and it is, therefore, quite likely that, on their return lo their breeding 

 quarters, a White Wagtail may often mate with a Pied Wagtail. In addition 

 to the purer grey of the Eastern birds, there is always more white on the 

 wing coverts in the Siberian and Indian specimens than in West-European 

 examples. 



Hab. The whole of Europe and Northern Asia, wintering in N.-E. 

 Africa and Senegambia, also the plains of India. 



Sub-spf A. Motacilla baicalensis. Motacilla baicalensis, Sivinhoe, P.Z.S. 

 1871, p. 363 ; David and Oust. Ois. Chine, p. 301 ; Slater, Ibis, 1882, p. 433, 

 is also described by Mr. Sharpe. 



General colour of the Adult male(typQ of species). Above very pure pearly 

 grey, the rump like the back; the upper tail coverts blackish, edged with 

 grey, the lateral ones externally white ; lesser wing coverts like the back ; 

 median and greater coverts pure white, the blackish bases entirely hidden ; 

 bastard wing black> edged with white ; primary coverts and quills blackish, 

 externally edged with grey ; the long secondaries externally white, preceded 

 by a shade of light brown ; tail feathers black, the two centre ones edged 

 with white, the two outermost pure white, with the extreme base and a 

 broad edge to the inner webs blackish ; fore part of the head white ; the 

 hinder crown and hind neck black ; lores, sides of face, cheeks, ear coverts, 

 sides of hinder crown and sides of neck pure white ; chin and sides of throat 

 white ; centre of throat, foreneck and chest black ; remainder of under 

 surface, including the under tail coverts, pure white ; the sides of the breast 

 and flanks ashy grey ; axillaries white, washed with ashy ; under wing coverts 

 pure white. (Sharpe.) 



Length. 7*2 inches; wing 3*5; tail 3'55 ; tarsus 0*85; culmen cr$5. 

 (Mus. H. Seebohm.) 



Hab. Eastern Siberia, probably wintering in India and China. Gates has 

 it as a synonym of M. alba, of which it is an eastern form. It is probably 

 found in British Burmah. Sharpe's record of this is from Lake Baikal and 

 India (Gould Collection), but there is no precise locality given. 



783. Motacilla ocularis, Swinh., Ibis, 1860, p. 55 ; id., P. z. S. 



1870, p. 129; 1871, p. 364; David et. Oust., Ois. Chine, p. 299; Seebohm, 

 Ibis, 1875, p. 345 ; Hume and Dav., Str. F. vi. p. 518 ; Hume, Str. F. viii. 

 p. 103; Scully, Str. F. viii. pp. 312,315; Hume, t. c. p. 413 ; Gates, Str. 

 F. x. p. 225 ; id., B. Br. Burm. i. p. 158 ; Dybowsky, Bull, Soc. Zool. France 

 viii. p. 360; Sharpe, Cat. B. Br. Mus. x. p. 471. SWINHOE'S WAGTAIL. 



