MONOGRAPH OF THE FALCONID 4, 
I. Genus HIERAX, Vicors. 
Two teeth on each side of the bill; tarsus short, covered with 
irregular scales; size of Coccothraustes. The Psittacine or true 
Faleonine type. East India. 
1. H. cerulescens, Vig.; F. coerulescens, Linn. ; Temm. pl. col. 
97; Edw. t.108. F. bengalensis, Briss.; F. Sringillarius, Drap.; 
F. malayensis, Strick.— Band over the ear white; wings and tail 
with white spots. Jaya, Borneo. 
1. a. H. entolmus, Hodgson. — Band oyer the ear and 
occiput white. Nepaul. 
2. H. erythrogenys, Vig. (6); F. sericeus, Kittl. (2) Vogel.— 
Wings and tail without bands and spots. —Island of Lugon, Manilla. 
Il. Gexus TINNUNCULUS, Vier. 
One tooth on the bill; tarsus short, covered with irregular scales; 
toes short with transverse scales; the exterior toe as long as the 
interior ; the first or the first and second quills, near the tip on the 
inner web, emarginated. ‘The swallow or Milvine type. 
a. Subgenus Polihieraz, Kaup.— The wings. very short, not 
reaching to half of the tail; the first and second quills obtuse, 
emarginated. The Falconine type. 
1. T, semitorquatus, Kp.; F. semitorquatus, A. Smith, Ill. of 
S. Af. Zool. g and 9.— The wings with white spots on the exterior 
web. S. Africa. 
6. Subgenus Erythropus, Brehm.—'The secondaries very short, 
shorter than the quills; only the first quill emarginated. The 
Milvine type. 
2. T. vespertinus, Kp.; F. vespertinus, Linn.; rujipes, Naum. 
tab. 28, pl. enl. 43, ii—The claws whitish-yellow ; cere and feet 
red, rarely yellow. Asia, Africa, Europe. 
¢. Subgenus Pecilornis, Kp.— Wings only reaching half the 
length of the tail; the secondaries longer than the quills; the first 
and second quills emarginated ; occiput with a variegated colouring. 
The Accipitrine type. ; 
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