MONOGRAPH OF THE FALCONID, 
and belly, the tibial and the under tail-covers black-banded. Eu- 
rope, Africa, Asia. 
19. F. anatum, Bonap.; peregrinus, Wils. t. 76.—The upper 
parts dark brown; beneath, rufous, with oblong spots like a young 
F. peregrinus. N. America. 
20. EF. melanogenys, Gould, Birds of Austr. Australia. ; 
e. Subgenus, Hierofalco, Cuy.— The largest falcons with the 
longest bill, the tip of the wings not reaching to the end of the 
long tail; toes long; the first and second quill emarginated. The 
Buteonine type. 
21. F. gyrfaleo, Linn.; pl. enl. 210, Naum. t. 21, 22.—The 
total colour white. N. Europe, N. America. gk So 
22. I’. subniger, G. R. Gray, Ann. Nat. Hist. 1842.— The total 
colour soot-black. Australia, 
VY. Genus IERACIDEA, Goutp. 
One tooth on the upper mandible; the tarsus long, with large 
irregular scales, and 13-2 as long as the middle toe; the toes with 
broad regular transyerse scales; 1-3 quills emarginated. The Bu- 
teonine type. Australia, 
1. 1. berigora, Gould; F. berigora et occidentalis, Gould; F.. 
berigora, Vig. and Horsf.—The brown tail with sixteen narrow 
rufous bars. 
2. T. nove zeelandie, Kp.; F. nove zeelandie, Lath., Gmel. 
Forst. Ic. ined. t. 88. F. australis, Homb. and Jacq.—The tail 
with eleven small whitish bars not reaching to the shaft. 
B. Subfamily Minvinz. 
I. Genus Ictinia. II. Navcoterus. LIT. Circus. IV. Elanus. 
V. Milvus. : 
Nauclerus is the typical genus in this subfamily, and represents 
the swallow type with very short secondaries, yery long quills, 
swallow tail, and very short feet and toes. 
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