1919-] the Birds of the Anglo-Egyptian Sudan. 707 



We happen to Lave no Sudanese specimens before ns, bnt 

 Ml'. Butler records tlie Egyptian Vulture as aliundaut in the 

 northern part ofc" tl'.e Sudan^ becoming scarcer to the south. 



Necrosyrtes monachus pileatus. 



Vultur pileatus Burchell, Travels, ii. 1824, p. 195: between 

 Graaft' Reinet and the Orange river, i. e. Hopetown district 

 of the Cape Province. 



Neophron monachus apud Butler, Ibis, 1905, p. 371, 1908, 

 p. 234. 



[C. & L. coll.] 1 Senga Dec. Sen. ; 1 Bahr el Zeraf, 

 Feb. U.N. 



The difference between this race and the typical form 

 from Senegal is merely that of size, the wing of the pi'esent 

 race being over 470 mm. and generally over 500 mm., while 

 that of tlie typical race is usually under 470. The north- 

 east African birds agree with south African birds rather 

 than with those of north-west Africa. This Vulture replaces 

 to a great extent the Egyptian Vulture in the southern part 

 of the Sudan. 



Family Sagittariid^. 



Sagittarius serpentarius. 



Falco serjJentarius J. F. Miller, Var. subjects Nat. Hist. 

 1779, pi. 28 : Cape of Good Hope. 



Serpentarius serpentarius (Mill.); Reichw. V. A. i. p. 528; 

 Claude Grant, Ibis, 1915, p. 236. 



Serpentarius secretarius (Scop.); Butler, Ibis, 1905, 

 p. 370, 1908, p. 254. 



We agree with Claude Grant that at present we can see 

 no reason for recognizing any races of the Secretary Bird. 

 The material, however, is not extensive, and it is possible 

 that more specimens may make separation necessary. 



The generic name Sagittarius Hermann, Tab. Affin. Anim. 

 1783, pp. 136, 235, antedates Serpenturius Cuvier, Tabl. 

 Elem. d'Hist. Nat. 1798, p. 254 (RichuuMul, P. U.S. Nat. 

 Mus. liii. 1917, p. 622). 



/fo he continued.] 



