90 FALCONIDA. 
elongatis et nigro terminatis: subtus gutture schistaceo, pectore nigro, abdomine toto albo ; hypochondriis 
nigro maculatis, tibiis et tarsi parte proxima albis, nigro stricte fasciatis; alis subtus albis glauco 
variegatis, remigibus ad apicem nigris albo oblique transfasciatis ; cauda nigra, albo terminata et griseo 
quadrifasciata; rostro nigro, pedibus flavis. Long. tota circa 33:0, alee 24-0, caudee 17°5, tarsi 4°8. 
(Descr. exempl. ex Lion Hill, Panama. Maus. nostr.) 
Hab. Norra America, Rio Grande Valley !2%—Mexico (Bullock}"), Almoloya B. 
Tacubaya, Orizaba, Guichilona, Tehuantepec (Sumichrast 1°), Mirador (U. S. Nat. 
Mus.8) ; Guatemana, Vera Paz (Skinner®); Costa Rica, San José (Calleja’, 
Cherrie', v. Frantzius), Cartago, Turrialba (v. Frantzius*), Candelaria Mts. 
(Boucard®); Panama, Lion Hill (M‘Leannan °4, 0. S.*).—Soutn AMERICA generally, 
from Colombia and Guiana to Paraguay ’. 
The Harpy is widely distributed over the forest-regions of South America, and is not 
unfrequent in the southern districts of Central America, but becomes much scarcer 
towards the northern parts. Sumichrast '° says that it is exceedingly rare in Mexico, 
where he does not consider the bird to be a native, and its occurrence north of the Rio 
Grande Valley is still a matter of conjecture. 
In Guatemala Skinner states that 7. harpyta is an inhabitant of Vera Paz, and 
exaggerated stories of its depredations are told by the Indians, but we ourselves never 
met with it. The species has been recorded from several districts of Costa Rica, and in 
the forests of Panama it is by no means uncommon. The late Mr. M‘Leannan told us 
that scarcely a week passed without his seeing one or more, and we noticed a bird 
crossing the line of railway °. 
The flight of this great Eagle is slow and heavy, but it is admitted to be a desperate 
robber, and a note by Dr. Felix Oswald, quoted by the late Captain Bendire 1’, says that 
the “ Lobo volante, or Winged Wolf, as Quesada translates the old Aztec name of the 
Harpy, attacks and kills heavy old Turkey-cocks, young fawns, sloths, full-grown foxes 
and badgers, middle-sized pigs, and even the Sapayou Monkey (Ateles paniscus™), whose 
size and weight exceed its own more than three times.” 
The same observer describes the nest in the Oaxaca Mountains, and says that the 
eyrie is among the inaccessible trees and rocks of the foot-hills. At present, however, 
no authentic eggs of the Harpy appear to have been taken. 
AQUILA. 
Aquila, Brisson, Orn. i. p. 420 (1760), et auctt.; Sharpe, Cat. Birds Brit. Mus. i. p. 232. 
The species of true Aguila number about ten or eleven, of which one only, 
A. chrysaetus, occurs in America and also in the Old World. ‘The rest are distributed 
over Europe, Asia, and Africa. 
The Eagles are amongst the largest of the Falconide, and are very powerful both as 
regards their feet and bill and also in their flight. In most of their characters they 
/* 2= A, vellerosus, Gray. 
