MONOGRAPH OF THE FALCONID:, 
Temm. pl. col. 134, 9 juv.; F. niveus, Temm., 2 juv.; /. cristatel- 
lus, Temm. pl. col. 282, g ad.; Nisaétus pileher, nepalensis al 
pallidus. Hodgs.; Morphnus hastatus, Less.; Spizaétus oriental, 
Temm. and Schleg. Fauna Jap., ¢ young.— The adult bird with a 
black moustache and a central stripe on the chin; the adult male 
on the breast, belly, legs and under tail-covers, black or brown 
banded; the young male beneath, white, with black brown longi- 
tudinal spots on the tip of each feather. 
The adult female coloured very like the young atts but the 
spots larger and the crest longer. The very young female without 
a crest, sometimes uniform soot brown (limnaétus), another time 
more whitish (niveus). Asia and its Archipelago. 
b. Subgenus Lophaétus, Kp.— The secondaries cover ¢ of the 
quills; bill slender and divided to middle of the eye; 1-5 quill , 
emarginated but not very distinct. The Milvine type. 
2. Sp. occipitalis, G. Gray; F’. occipitalis et senegalensis, Daud., 
Vaill. t. ii: — The wings and tail pure white. The soft and woolly 
plumage shows anologies with Circus. Africa. 
ce. Subgenus Spiziaétus, Kp.— The secondaries cover 2} of the 
quills; bill strong; 1-6 quill very distinctly emarginated. The 
Accipitrine type. 
3. Sp. ornatus, Vieill.; F. ornatus et maudujjti, Daud., Vaill. 
xxvi.; F’. superbus et coronatus, Shaw: Harpyia braccata, Spix, 
f. 3, Azara 23.— Beneath white with black bars; the little fea- 
thers of the wings black banded. 8S. America. 
4. Sp, bellicosus, Kp.; F. bellicosus, Daud., Vaill. Ois. d’ Afr. 1s 
Aquilla bellicosa, Vieill.; F. armiger, Shaw, Smith, Il. i. 42.— 
Head with the bill 123 mm. long; beneath white, every feather 
with a round black spot on the tip. S. Africa. 
5. Sp. coronatus, Kp.; F'. coronatus, Linn., A. Smith, Ill. xlii— 
Head with the bill 106 mm. long; head, neck, and beneath, white. 
S. Africa. 
d. Subgenus Spiziaster, Less.— The occiput without a crest ; 
1-5 quill with a distinct emargination; the secondaries cover half 
of the quills; middle and hind toes very long ; the tail a little forked. 
The Aquiline type. 
6. Sp. atriceps, Kp.; F. atricapillus, Cuy.; Temm. Me col. 79 ; 
Buteo melanoleucus, Vieill., Gal. 14. —White, with black lorum and 
eye region ; the occiput blak; back and w ings black. §. America. 
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