318 TEN TEAKS IN SWEDEN. 



continent), by its black being pure like that of the head, 

 as nothing more than a local race of the M. alba, L. This 

 has, I believe, been occasionally killed in Sweden and in 

 Denmark; described by Kjarbolling, and one of the sy- 

 nonymes he uses is M. lugubris, Tern., which, however, is 

 described by Dr. Bree as quite a different species, "the 

 sombre wagtail." This latter may, however, at once be 

 distinguished from any variety of M. alba by the wing pri- 

 maries, more than half of the upper portion of which are 

 pure white, while a white fringe,, broader in summer than in 

 winter, runs along the outer edge of the secondaries. The 

 middle wing coverts are also pure white. 



103. M. BOARULA, Lath. Gra Aria. The Grey Wagtail. D. 



Length 8 in.; rump yellow, tail longer than in any 

 other wagtail ; the outer feather white, the two following 

 white, with black on the outer fans ; head greenish ; 

 back ash grey ; under parts yellow, throat in the male 

 black. In the female rarely pure black. 

 This is the breeding plumage, and in the winter the male 

 assumes much the summer plumage of the female. 



Has been shot only once in the south of Sweden, and is 

 very rare in Denmark. 



B. (Budytes, of Authors.) 



Second hind claw longer than the toe, and but little 

 bent; tail shorter than the rest of the body. 



104. M. FLAVA, L. Gul Aria. The Grey-headed Wagtail. 



D. F. 



This is the common Scandinavian yellow wagtail. 

 Rather smaller than M. alba ; back olive green ; head 

 ash grey, black, or green; tail black, the two outer 

 feathers white on the outer edges ; under parts yellow. 

 The colours in the female are not so pure. 

 Common everywhere up to the North Cape ; but I never 

 saw any other than the black-headed form, M. flava melano- 

 cephala, Bp., in Lapland. 



I do not think our British yellow wagtail, If. Rayii, Bp., 



