FALCONIDA, — CLIIL. 257 
t. Wing rather pointed, more than 4 times length of tarsus. 
Bury, 421. 
ui. Wing rounded, less than 4 times length of tarsus. 
ASTURLNA, 422, 
ee. Tarsus about as long as tibia. 
j- Face without ruff; wings rounded, little longer than 
tail; tarsus scutellate in front only, rarely booted. 
ACCIPITER, 420. 
jj» Face with a slight ruff, somewhat as in owls; wings 
very long, longer than the long tail; tarsus scutellate 
in front and behind. . . . . . . Currcus, 419. 
6b. Nostrils small, circular, with a conspicuous central bony tubercle; cut- 
ting edge of upper mandible with a strong tooth, separated from 
hooked tip of bill by a distinct notch; tarsus reticulate all around. 
(Falconine.) . . Be i ee wy er oe ee me vee RAE CO) 426) 
aa. Outer toe reversible; dases all of the same length, narrowed and rounded 
on lower side; tareni reticulate; plumage compact. (Pandionine.) 
Panpion, 427. 
416. ELANOIDES Gray. (Elanus; eiSos, form.) 
803. E. forficatus (L.). SwaLLow-TAILeD Kite. Lustrous 
black; head, neck, lower parts, and band on rump white; young 
streaky. L. 25. W.17. T.14. Southern, N. to Penn. and Minn. 
(Lat., forfex, shears ; tail deeply forked, like shears.) 
417. ELANUS Savigny. (Lat., kite.) 
804. BE. leucurus (Vieillot)} WiTr-raitep Kite. Bluish 
gray, with white on head and tail, and black on shoulder. L. 17. 
W.13. T.7. Tropical Am., N.to S. Ill. (Acueés, white ; odpad, tail.) 
418. ICTINIA Vieillot. (ékrivos, kite.) 
805. I. mississippiensis (Wilson). Mussissippr Kirk. Chiefly 
lead blue, wings with chestnut. L.15. W.12. T. 6}. S.E.U.S., 
N. to Penn. and Wis. 
419. CIRCUS Lacépéde. (kipxos, a kind of hawk.) 
806. C. hudsonius (L.). Marsa Harrier. Chiefly pale 
. bluish gray; rump and under parts whitish; tail bluish, mottled 
and tipped with white, and with dark bands; 9 dusky brown. 
L.18. W.15. T.9. N.Am., abundant; readily known by the 
white rump. 
420. ACCIPITSR Brisson. (Lat., hawk.) 
a, Tarsus feathered less than } of the way down in front, the feathers well 
separated behind. (ceipiter.) 
807. A. velox (Wilson). SHarp-SHinnep Hawk. “PiGEon 
Hawk.” Tail truncate; tarsus sometimes “booted”; general 
color bluish gray, breast, sides, etc., whitish, streaked with reddish 
VW 
