131 CORVULTUU ALBICOLLIS 



The family includes some two hundred species, and is distributed over 

 the whole world ; but only eleven of the species occur in the Ethiopian 

 Eegion. 



KEY TO THE GEXEEA. 



a. Tail much shorter than the wing ; head feathered. 

 a^. Bill stout ; tarsi and feet black. 



a". Bill very deep, its depth being more than the length 



of the outer toe CorvuUur. 



h". Bill less deep, and entirely black Coi lus. 



lA. Bill slender; tarsi and feet red rijrrhocorax. 



b. Tail longer than the wing or with the head bare. 



c'^. Head bare ; tail rounded, of twelve feathers .... Picathartes. 

 d'-. Head feathered ; tail graduated, of ten feathers . . . Cn/ptorhina. 



Genus I. COKVULTUE. 



Bill black with tbe end whitish, extremely strong and deep ; culmen 

 curved and not shorter than the tarsus ; nostrils covered v\ith stout bristles. 

 \Mng pointed and about twice the length of the tail. Tail of twelve feathers 

 and si ghtly rounded. Tarsi and feet black and strong. 



General plumage black or dark brown, with some white on the hind 

 neck or crop. 



Type. 



Corvultur, Less. Traite, p. 327 (1831) C. albicoWs. 



Archicorax, Glog. Handb. p. 274 (18i2) C. albicollis. 



The genus is confined to Tropical and South Africa and comprises two 

 species. 



Corvultur albicollis. 



Corvus albicolhs, Lath. Ind. Orn. i. p. 151 (1790) Africa. 



Corvultur albicollis, Sharpe, Cat. B. M. iii. p. 24 (1877); Shelley, B. 



Afr. I. No. 632 (1896) ; Johnston, Brit. Central Afr. p. 330 (1897) ; 



Eeichen. Yog. Afr. ii. p. 640 (1903); Shortridge, Ibis, 1904, p. 174 



Pondoland ; Sharpe, t. c, p. 367 Cape Col.; Sparrow, Journ. S. Afr. 



0. U. i. p. 9 (1906) ; Sclater, Ibis, 1905, p. 112 Matoppo Hills. 

 Corvus cafer, Licht. Cat Eer. Nat. Hamb. p. 9 (1793). 

 Corvus vullurinus, Sbaw, Gen. Zcol. vii. p. 343 (1809). 

 Corvultur crassirosti-is (non Eiipp.), Grant, Ibis, 1905, p. 201 S. Uganda. 

 Le Corbivau, Levaill. Ois. Afr. ii. p. 5, pi. 50 (1799). 



