ORDER RAPTORES. 135 
348. Archibuteo ferrugineus (LIcHT.). 
Ferruginous Rough-Leg. 
Falco ferrugineus Licut. Abh. K. Akad. Berl. 1838, 428. 
Archibuteo ferrugineus GRAY, Gen. B. fol. ed. 1849, 12. 
[Bi32, C357, R448, C526. 
Grog. Dist.— Western North America, from the Plains (eastern 
North Dakota to Texas) westward to the Pacific, and from the Sas- 
katchewan region south into Mexico; casually east to Illinois. 
Breeds from Utah, Colorado, and Kansas northward to the Saskatch- 
ewan Plains. 
Genus AQUILA Brisson. 
Aguila Briss. Orn. I. 1760, 419. Type, ako chrysaétos LINN. 
349. Aquila chrysaétos (Liny.). 
Golden Eagle. 
Falco chrysaétos LINN. S. N. ed. 10, I. 1758, 88. 
Aquila chrysaétos DuMonrT, Dict. Sci. Nat. I. 1816, 339. 
[B29.\@ 360, RoA49, C532. 
Groc. Dist.— North America, south to Mexico, and northern 
parts of the Old World. Breeding range in the United States, prac- 
tically restricted to the mountainous parts of unsettled regions. 
Genus THRASAETOS Garay. 
Lhrasaétos Gray, P. Z. S. 1837 (June, 1838), 108. Type, 
Vultur harpyia LINN. 
[850.] Thrasaétos harpyia (Linn.). 
Harpy Eagle. 
Vultur harpyia LINN. S. N. ed. 10, I. 1758, 86. 
Thrasaétos harpyia Gray, P.Z. S. 1837 (June, 1838), 108. 
[B—, C—, R 450, C 631.] 
Groc. Dist.— Lower Rio Grande Valley, casual; south to Para- 
guay. Louisiana (?). 
