[Doiibtfully distinct.] 



17a. Neophron percnoj/terus rubripersonatus Zfirud^y Persian 



&Harms., Orn. Mb., X., pp. 52-3(1902). " Baluchistan. 



Smaller than t^'-pical form ; lejigth 21 in. ; 

 wing 15.5. 



171). Neophron perc7iopterus ginginianus (Lath.), Indian 



Ind. Orn. i., p. 7 (1790). Peninsula, 



Indian White Vultnre. very rare 



in Cevlon. 



Gen. XIII. NECROSYRTES Gloger (1842). 

 With a fur-like chest-patch. 



Plumage chocolate brown ; hind neck covered 

 with whitish down ; crop-patch creamy 

 brown, encircled with white down. Length 

 24 in. ; Aving 18.50. 

 18. Necrosi/rtes monachv.s monachus (Temm.'>, PI. N.E. & 

 Col., i., pi. 222 (1823). E. .\frica, 



Northern Hooded Vultnre. W. Africa. 



Larger ; length 26 in. ; wing 20 in. ; with 

 shorter and stouter bill. 

 18a. Necrosyrtes monachus pjileatiis (Burch.). Trav., 

 ii.,p. 105, (1824). 

 Hooded Vulture. 



S. Africa. 



Fam. II. FALCONID.^. 



Crown of head always clothed with feathers, 

 feathered or bare ; outer toe not reversible. 



Sub-Fam. I. POLYBORINjE. 



Toes connected near base by interdigital mem- 

 brane ; sides of face mostly bare. 



Gen. XIV. POLYBORUS Vieill. (1816). 

 Nostrils oval. Size large (22-26 in.). 



Above and below blackish brown with narrow 

 whitish bars ; tail whitish with a terminal 

 blackish band ; face, neck and breast white 

 with blackish bars. 

 19. Polyborus plancus (Mill.) Var. Subj. Nat. Hist. 

 PI. 17 (1778). 

 Common Caracara. 



its sides either 



S. America, 

 Patagonia to 

 20^ S. lat. on 

 W. & Amazon 

 on E. side. 



