1919-] the Birch of the Anglo-Egyiitian Sudan. 703 



Circus pygargus. 



Circus pyijarc/us Linn. Syst. Nat. lOtli ed. 1758, p. 89: 

 England (ex Albin) ; Hartert, Vog. pal. Faun. p. 1143. 



We have not seen any Sudanese exam[)les of Montagu's 

 Harrier, nor apparently did Mr. Butler meet with it while 

 in the Sudan ; but it has been recorded by Heuglin and 

 others, and there are many specimens in the Museum from 

 Abyssinia, Uganda, British East Africa, and farther south, 

 so there can be no doubt of its occurrence on migration 

 within our limits. 



Circus cyaneas, the Hen-Harrier, is also recorded by 

 Heuglin and lliippell from the Sudan and Abyssinia, but 

 there are no specimens in the Museum which would lead us 

 to suppose that it ever came so far south. 



Circus macrourus. 



Accipiter macrojirus S. G. Gmelin, Nov. Comm. Acad. 

 Petrop. XV. 1771, p. 439, pis. 8 & 9 : S.E. Russia. 



Circus macrourus Hartert, Vog. pal. Faun. p. 114.2 ; 

 Butler, Ibis, 1905, p. 370, 1908, p. 254. 



[B. coll.] 1 Roseires Nov. Sen. ; 3 Khartoum Oct. and 

 " winter." 



[C. & L. coll.] 1 Sinkat Mch. R.S. ; 1 Senga, 1 Kamisa 

 Dec. Sen.; 1 Hassania Island, Jan. W.N. 



The Pallid Harrier is abundant and widely distributed 

 throughout the Sudan in winter. 



Circus aeruginosus aeruginosus. 



Falco teruginosus Linn. Syst. Nat. 10th ed. 1758, p. 91 : 

 Europe, restricted type-locality: Sweden: 



Circus (oruf/iuosus cerughiosus Hartert, Vog. pal. Faun, 

 p. 1135 ; Butler, Ibis, 1905, p. 370, 1908, p. 254. 



[B. coll.] 3 Khartoum Jan. Feb. Mch. ; 1 Meshra Rom 



Feb. U.N. 

 [C. & L. coll.] 2 White Nile, lat. 15° N. Jan. W.N. ; 

 1 Jebel Ahmed Agha Jan. U.N. 



