FALCONIDA, — CLIII. 259 
W. 11. T. 7. E.N. Am., a handsome but small hawk. (Lat. 
broadest.) 
aa. Outer webs of primaries spotted with white, buffy or ochraceous: 4 pri- 
maries emarginate. 
814, B. lineatus (Gmelin). CHickeN Hawk. Rep-SHouL- 
DERED BuzzaRpD. Dark reddish brown; head and neck more or 
less rusty ; bend of wing orange brown in adult; tail with sev- 
eral white bars; young much streaked below and with little red- 
dish, L. 22. W.14. T.9. Considerably lighter in weight than 
the red-tailed hawk, although nearly as long. N. Am., abundant. 
422. ASTURINA Vieillot. (Lat., dim. of Astur, a hawk). 
815. A. plagiata Schlegel Gray Hawk. Gosuawkx. Chiefly 
dark ashy gray, white below: wings and tail black, with white 
markings; upper tail coverts white. L. 18. W. 10. T. 74. 
Mexican, straying to S. Ill. (Lat., striped.) 
423. ARCHIBUTEO Brehm. (Lat. archi, chief; Buteo.) 
a. Bill small and weak, its gape, from corner to corner, 12 inches. 
816. A. lagopus (Briinnich). Rovcu-Leccep Hawk. Brack 
Hawk. Chiefly whitish, rusty streaked; but sometimes entirely 
black. L. 24. W.18. T. 10. Northern regions. The Amer- 
ican form, var. sancti-johannis (Gmelin) is darker and more rusty 
than European. (Eu.) (Aayds, hare; rovs, foot.) 
aa. Bill strong, the gape 12 inches wide from corner to corner of mouth. 
817. A. ferrugineus (Lichtenstein). Rusty brown, marked 
with gray, white, and black; sometimes plain dark chocolate- 
brown. L. 23. W.17. T.10. W.N. Am, E. to Il. ‘ 
424. AQUILA Brisson. (Lat., eagle.) 
818. A. chrysaetos (L.). GotpEN Eacrie. Glossy dark 
brown ; head and neck paler tawny brown; quills blackish; tail 
clouded with whitish at base. L. 36. W.25. T.16. Northern 
regions, less common than the Bald Eagle, in the U.S. (Eu.) 
(xpuees, gold; derds, eagle.) 
425. HALI@ETUS Savieny. (GAs, sea; derés, eagle.) 
819. H. leucocephalus (L.). Batp Eacie. Dark brown; 
head, neck, and tail white (after-the third year); bill and feet 
yellow. L. 36. W. 25. T. 14. N.Am., everywhere. “Com- 
mon, for an eagle; a piratical parasite of the Osprey, otherwise 
notorious as the emblem of the Republic.” (Coues.) (Aeukés, 
white; xepadn, head.) 
