FAMILY FALCONIDA. — HAWKS, FALCONS, EAGLES, ETC. 173 
Section 4. Fourth primary, longest; four or five outer 
primaries, emarginate or notched; upper tail coverts, 
white. 
Under surface of tail, whitish at base; one broad subterminal band of dark brown, 
tipped with grayish white; upper mandible, long and curved (see cut). Not 
recorded north of Fiorida. 
Everglade Kite. 
Rostrhamus sociabilis. 
See No. 264. 
Upper mandible, hawk-like (see cut); under surface of tail, white or pale rufous 
with several bands of dark brown. 
Marsh Hawk. 
Circus hudsonius. 
See No. 265. 
Section 5. Fourth primary, longest, four or five outer 
primaries emarginate or notched; upper tail coverts, 
not white; no feathers on tarsus. 
Face, bare; back, brown; thighs, black or dark brown. Audubon’s Caracara. 
Polyborus cheriway. 
See No. 297. 
Section 6. Fourth primary, longest, four or five outer 
primaries, emarginate or notched; upper tail coverts, 
not white; tarsus, partly (but not entirely) feathered. 
Tail, bright rufous brown (adult); tail, whitish or grayish, with numerous 
brown bars (immature). 
Red-tailed Hawk. 
Buteo borealis, and races. 
See No. 271. 
General plumage, dark sooty brown, sometimes with underparts pale, more or 
less streaked and spotted. 
Harlan’s Hawk. 
Buteo borealis harlant. 
See No. 274. 
