224 FALCONIDiE, 



Range, South America from Bolivia and Paraguay, northwards 

 through the whole of Amazonia and Columbia to Mexico. 



■^o"- 



1. Thrasaetus harpyia. 



L'Aigle hupe du Bresil, Briss. Orn. i. p. 446 (1760). 



Vultur hai-pyia, Linn. S. K. i. p. 121 (1766). 



Caracca Falcon, Lath. Gen. Si/n. i. p. 81 (1781). 



Crested Falcon, Dillon, Trav. Spain, p. 80, pi. 3 (1782). 



Vultur corouatus, Jacquin, Beitr. p. 15 (1784). 



Grand Aigle de la Guiana, Maud. Enc. Meth. iii. p. 1250 (1784). 



Falco jacquini, Gm. S. N. i. p. 251 (178S). 



Falco harpyia, Gm. S. X. i. p. 251 (1788). 



Falco cristatus, Gm. S. N. i. p. 260 (1788). 



Falco destructor, Baud. Traite, ii. p. 60 (1800) ; Temm. PL Col. i. 



pi. 14(1824). 

 Gypaetus harpyia, Daud. Traite, ii. p. 27 (1800). 

 Gypaetus coronatus, Daud. Traite, ii. p. 28 (1800). 

 L'Ouira ouassou, Sonn. ed. Buff. H. N. xxxviii. p. 47, pi. 7. fig. 1 



(1806). 

 Falco imperialis, Shaic, Gen. Zool. vii. p. 52, pi. 15 (1809). 

 Falco regalis, Shatv, Gen. Zool. vii. p. 56 (1h09). 

 Falco caracca, Shaw, Gen. Zool. vii. p. 64 (1809). 

 Falco calquin, Molin. St. Chili, p. 220 (1810). 

 Harpyia destructor, Cuv. Regne An. i. p. .317 (1817) ; D'Orb. Voi/. 



Am. Merid., Ois. p. 81 (1847) ; Barm. Th. Bras. ii. p. 59 (1850). 

 Harpyia maxima, Bonn, et Vieill. Enc. Meth. iii. p. 1249 (1823). 

 Harpyia imperialis, Steph. Gen. Zool. xiii. p. 17 (1826). 

 Harpyia ferox, Less. Traite, p. 50 (1831). 

 Thrasaetus harpyia. Gray, P. Z. S. 1837, p. 108 ; id. Gen. B. i. 



p. 15 (1845) ; 'Bp. Cmisp. i. p. 29 (1850) ; Strickl. Orn. Spi. p. 26 



(1855) ; Gra)/, Hand-l. i. p. 16 (1869) ; Scl. ^- Salv. Nomencl. Av. 



Aeo<r. p. 120(1873). 

 Nothrophrontes destructor, Gloger, Handb. Naturg. p. 219 (1842). 

 Morphnus harpyia. Cab. ^- Tsch. Arch. f. Naturg. 1844, p. 265 ; Pels. 



Orn. Bras. p. 4 (1871 ). 

 Morphnus destructor, Licht. Nomencl. p. 2 (1854). 

 Astur hai-pyia, Schl. Mus. P.-B. Astures, p. 25 (1862). 



Young. Upper surface black, the lower back and rump crossed 

 with distinct ashy grey bars, the median and greater wing-coverts 

 mottled with ashy brown, taking the form of bars on the latter ; 

 head and neck all round ashy grey, blacker on the crown, the long 

 crest-feathers very plainly blackish towards their tips ; scapulars 

 and quills brown, externally shaded with grey and mottled with 

 black, forming a distinct subterminal band on the scapulars and 

 secondaries, which are tipped with whity brown ; lower surface of 

 ■wing ashy white, the black bands very distinct below, except near 

 bases of inner webs, which are mottled only with black ; tail- 

 feathers ashy brown, inclining near base to bluish ash-colour, tipped 

 with whitish and crossed with five broad bands of black, the 

 subterminal one much the broadest ; throat ashy grey like head, 

 remainder of under surface of body white, with a broad band of 

 glossy black feathers across the chest, the thighs barred with black ; 

 under wing-coverts and feathers round the bend of the wing white, 



