FALCONID^ — THE FALCONS — HALLETUS. 



451 



Genus HALI^TUS, Savigny. 



Halketus, Savigny, Hist. Nat. d'Egvpte, I. 1809, 85. 



Gen. Char. Size large ; tarsi short, naked, or feathered for only a short distance 

 below the joint, and like the toes covered with scales ; toes rather long ; claws very strong, 

 curved and sharp. Bill large, very strong, compressed ; margin of upper mandible slightly 

 lobed ; wings long, pointed ; tail moderate. 



HalicGtus leucocephalus, Linnjecs. 



THE WHITE-HEADED EAGLE. 



Fako leucocephalus, Linn^us, Syst. Nat. I. 1766, 124. — Wilson, Am. Om. IV. 89; 

 pi. 36. — AuDtiBON, Birds Amer. pi. 31, 126. — Halialus leucocephalus (Savigny), 

 Cdvier, Regne Anim. 2d cd. 326. — Audubon, oct. ed. I. pi. 14. — Ncttall, Man. I. 

 74.— NiiWBEERY, P. R. Rep. VI. ii. 75. — Cassin, P. R. Rep. Biid.s IX. 43.— 

 Heek.mann, X. vi. 30. — Cooper and Suckley, XII. iii. Zool. of \V. T. 151. — 

 Dresser, Iliis, 1865. (Texan birds.) — Coues, Pr. A. N. Sc. IS66, 49. 



Faico osslfiagus, Wilson, Am. Orn. VII. 16 ; pi. 55. (Youni;.) 



Sp. Cii.\r. Adult. Head, tail, and its up]irr and under coverts, white; rest of plumage 

 brownish-black, generally with the edges of the feathers paler ; bill, feet, and iris, yellow. 



H lencorfphalus 



