ACCIPITKES. 



FALCONID.E. 

 AQUILIN.E. 



Genus NISAETUS. 



Bill strong, moderately lengthened, but not so much so as in Aguila, the culmen curving 

 from the cere, its length not exceeding the hind toe; tip much hooked; the margin prominently 

 festooned. Nostrils large, oval, and directed downwards. Wings with the 5th quill the longest, 

 of moderate length, shorter than in Aquila. Tail moderate, even at the tip. Tarsus shorter than 

 the tibia, stout, clothed with feathers to the toes, which are large and covered with three large 

 scales at the tip. Claws large, much curved, the inner claw much larger than the middle. 



NISAETUS FASCIATUS. 



(BONELLFS EAGLE.) 



Aquila fasciata, Vieill. Mem. Linn. Soc. Paris, 1822, p. 1-52. 



Falco bonellii, Temra. PL Col. i. pi. 288 (1824). 



Aquila bonellii, Less. Man. Orn. i. p. 83 (1828); Gould, B. of Europe, i. pi. 7 (1S37); 



Kelaart, Prodromus, Cat. p. 114 (1852); Layard, Ann. & Mag. Nat. Hist. 1853, xii. 



p. 98; Tristram, Ibis, 1865, p. 252; Shelley, B. of Egypt, p. 206. 

 Eutolmaetus bonellii, Blyth, J. A. S. B. xiv. p. 74 (1845) ; Hume, Rough Notes, i. p. 189. 

 Nisaetus grandis, Jerd. 111. Ind. Orn. pi. 1 (1847). 

 Pseudaetus bonellii, Hume, Nests and Eggs, i. p. 33. 



Nisaetus bonellii, Jerd. B. of Ind. i. p. 67 (1862); Holdsw. P. Z. S. 1872, p. 411. 

 Nisaetus fasciatus, Sharpe, Cat. of Birds, i. p. 250 (1874); Dresser, B. Eur. part xxxiv. (1874). 

 The Crestless Hawk-Eagle, Jerdon ; The Genoese Eagle, Kelaart. 

 Perclicero ; Aguila blanca, Spanish. 

 Mhorungi, lit. " Peacock-killer," Hind. ; Bajali, Tarn, (apud Jerdon). 



Adult male. Length to front of cere 25-0 to 20*5 inches; culmen from cere 1*6 : wing 18-5 to 19-5, expanse 62"0 : tail 

 11-5 ; tarsus 3-5 to 3-7 ; mid toe 2-3 to 2-5, claw (straight) 1-2 ; hind toe 1-5 to 1-6, claw (straight) 1-6 : height of 

 bill at cere 0-7. 



Female. Length to front of cere 26-0 to 27 - ; culmen from cere 1*6 to 1*7; wing 1S-6 to 20'3 ; tail 11 '2 to 12*0 ; 

 tarsus 3-6 to 4-0 ; mid toe 2-6, claw (straight) 1*3 ; hind toe 1-6. 



Obs. Some adult females are quite as small as males. In Hume's ' Eough Notes ' the dimensions of the wings of three 



females are given at 20-0, 19-63, and 19-65, and the expanse of the largest 67-0. 

 Iris bright yellow, in some brownish yellow ; cere yellowish ; bill blackish brown, paling into bluish horn about the cere, 



the gape yellowish ; feet yellowish or whitish brown. 



