302 FALCONTD-E. 



Range. The whole of Europe, Africa, Asia, ludo- and Austro- 

 Malasia, Australia, Oceania, N. America. 



Key to the Species. 



a. Tail pure white. 

 a'. Belly brown. 



a". Wing-- coverts pure white pelafficus ad., p. 306. 



h". "\Ving--coverts brownish. 



a'". Head and neck dark brown, imi- 



forni with back pelagicus inim., p. 306. 



h'". Head and neck ashy brown, lighter 



than back alUcillus ad., p. 302. 



c'". Head and neck pure white. 



o*. Under wing-coTerts dark brown leucocephalm ad., p. 304. 

 b\ Under wing-coYerts chestnut . . vociferoides ad., p. 311. 

 b'. Belly chestnut voctfer ad., p. 310. 



b. Tail black, with broad terminal band of 



•nrhite leucogaster ad., p. 307. 



c. Tail white, with broad terminal band of 



black, 

 c'. Wing-coverts uniform with rest of back ; 



breast uniform leucoryphii^i ad., p. 308. 



cT. Wing-coverts broadly margined with 



chestnut ; breast white, slightly 



streaked with blackish vocifer juv., p. 310. 



d. TaU variegated, mottled and vermiculated 



with brown and white. 

 e. Bill leaden blue 



c". Wing not exceeding 24 inches leucogaster ]\x\., p. 307. 



d". Wmg 24-26 mches {jeiccocephalus juv., p. 304. 



/'. Bill yellow, culmen horn-brown. 



e". Head and back uniform leucoryphns vix ad., p. 308. 



/". Head lighter than back albidlhis juv., p. 302. 



e. Tail perfectly uniform Iei(coryphus juv., p. 308. 



1. Haliaetus alhicillus. 



The Golden Eagle, Alhin, N. H. Birds, ii. pi. 1 (1738). 



L'Aigle a queue blanche, Briss. Orn. i. p. 427 (1760). 



Le Petit Aigle a queue blanche, Briss. t. c. p. 429 (1760). 



Le Grand Aigle du mer, Briss. t. c. p. 437 (1760) ; Buff. PL Enl. i. 



pis. 112, 415. 

 Vultur albiciUa, Linn. S. N. i. p. 123 (1766). 

 Falco ossifragus, Litin. S. N. i. p. 124 (1766). 

 Falco albiciUa, Gm. S. N. i. p. 253 (1788) ; Naum. Vog. Beutschl. i. 



p. 224, pis. 12, 13, 14 (1822) ; Werner, Atlas, Rapaces, pi. 19 



(1827) ; Kittl Kupf. Voq. pi. 2. fig. 2 (1832) ; Schl. u. Susem. Vog. 



Eur. Taf 25, 26 (c. 1839) ; Nordm. in Demid. Vog. p. 98 (1840) ; 



Yarr. Br. B. i. p. 18 (1841). 

 Falco melanaetus, Gm. S. N. i. p. 254 (1788). 

 Falco albicaudus, Gm. S. N. i. p. 258 (1788).^ 

 Falco hinnularius, Lath. Lid. Orn. i. p. 15 (1790). 

 Falco pygargus, Daud. Trnite, ii. p. 62 (1800, ex Briss.). 

 Haliaetus nisus, Savign. Dcscr. Egypte, Ois. p. 253 (1809) ; Lens. 



Traiie, p. 40, pi. 8. fig. 2 (1831). 



