612 Messrs. Sclater and Mackworth-Praed on [Ibis, 



[B. coll.] 2 Khor Arbat May 6 & 12, R.S. ; 23 Khartoum 

 Oct. 14 to Apl. 17. 



A common winter migrant widely distributed {A. L. B.). 



A fine series of Yellow Wagtails showing a certain 

 amount of variation. Among them are two (B.M. reg. 

 no. 1915/12/24/1455-6) with the white superciliaries very 

 nearly completely absent which we were inclined to identify 

 with M.f. borealis, and another pair (B.M. reg. no. 1915/ 

 12/24/1486, 1429) with a strongly marked yellow eyebrow. 

 These were submitted to Dr. Hartert, who has kindly ex- 

 amined them and pronounced them to be merely aberrant 

 examples of M.f.flava. 



Motacilla flava dombrowskii. 



Mutacilla flava dombrowskii (Tschusi) ; Hartert, Vog. pal. 

 Faun. p. 289. 



[B. coll.] 6 Khartoum Mch. 31 to Apl. 17, Kh. ; 

 1 Gamiza Apl. 8, B.G. 



Some of the Yellow^ Wagtails wintering in the Sudan 

 appear to be of this race, which breeds in Rouraania and is 

 distinguished by its very black ear-coverts. Dr. Hartert 

 agrees with us in this identification. 



Motacilla flava melanocephala. 



Motacilla melanocephala Licht. Verz. Doubl. Zool. Mus. 

 1823, p. 36: Nubia; Butler, Ibis, 1909, p. 393. 



Motacilla flava melanocephala Licht. ; Hartert, Yog. pal. 

 Faun. p. 296. 



[B. coll.] 7 Khartoum Jan. Apl. Dec. Kh. ; 1 Khor 

 Arbat May, R.S. 



[C. & L. coll.] 2 Lake No Feb. U.N. 



A common winter migrant (^A. L. B.). 



Motacilla flava melanogrisea. 



Motacilla flava melanogrisea E. v. Homeyer ; Hartert, 

 Vog. pal. Faun. p. 296. 



Motacilla melanocephala (nee Licht.) ; Butler, Ibis, 1905, 

 p. 305. 



