1920.] the Birds of the Anglo -Egyptian Sudan. 



/»/ 



Nyroca ferina. 



Anas ferina Liuu. Syst. Nat. lOtli ed. J758, p. 1.26: 

 Europe, restricted type-locality Sweden. 



[B. coll.] 2 Khartoum Mcli. 6 & 10. 



The Pochard is apparently not common in the Sudan. 

 One of these specimens is recorded by JNlr. Butler (Ibis, 

 1908, p. 257] as Fuligula nyroca, by an error. 



Dendrocygna viduata. 



Anas viduata Liuu. Syst. Nat. 12th ed. 1766, p. 205 : 

 Cartagena, Columbia. 



Dendrocygna viduata Keichw. V. A. i. p. 124- ; Butler, 

 Ibis, 1905, p. 383, 1908, p. 257. 



[B. coll.j 2 Malakal May & June, U.N. ; 4 Mongalla 

 July-Sept. Mon. 



[C. & L. coll.] 1 AVhite Nile lat. 14° N. Jan. W.N. 



The Whitehead Duck is plentiful in the Sudan ; Mr. Butler 

 mentions that he once heard of a Hock as far north as Haifa. 

 There appears to be no difference between African and 

 South American examples of this species. 



Dendrocygna fulva. 



Anas fulva Gmel. Syst. Nat. i. pt. 2, 1789, i). 530 : " New 

 Spain,^^ i. e. Mexico (ex Brisson). 



Dtndi'ocygna fulva Ueicliw. V. A. i. p. 126 ; Butler, Ibis, 

 1905, p. 383. 



[B. coll.] 1 Khartoum June. 



The Whistling Duck has the same range in the Sudan as 

 D. viduata, but numerically is much scarcer {A. L. B.). 



Plectropterus gambensis riippelli. 



Plectropterus riippelli Sclater, P. Z. S. 1859, p. 131, 

 pi. 153: "Eastern Africa''; Butler, Ibis, 1905, p. 382, 

 1908, p. 256. 



The Spur-ivinged Goose is widely distributed. We have 

 no knowledge of the form known as P. niger (Sclater, V, Z. S. 

 1877, p. 47) ever having occurred in the Sudan, but 



