228 MANUAL OF PHILIPPINE BIRDS. 



of a second basal one only visible below ; sides of head and tliroat blackish, 

 cheeks somewhat shaded with ashy gray; remainder of under surface of 

 body brown, the chest uniform, the breast with distinct oval spots of 

 white on both webs, more numerous on thighs and inclining to bars on 

 flanks and under tail-coverts; under wing-coverts paler brown, thickly 

 varied with oval spots of white, larger and further apart on the axillars 

 and greater coverts. Cere yellow, bill black, horn-colored at tip; feet 

 orange-yellow; iris yellow. Length, 622; culmen, 48; wing, 406; tail, 

 254; tarsus, 86. 



"Adult female. — Similar to the male but larger. Lengtli, 660; wing, 

 419; tail, 267; tarsus, 95." {Sharpc.) 



187. SPILORNIS HOLOSPILUS (Vigors). 

 PHILIPPINE SERPENT EAGLE. 



Buteo holospilus Vigors, Proc. Zool. Soc. (1831), 96. 



Spilonus holospilus Shabpe, Cat. Birds Brit. Miis. (1874), 1, 293; Hand- 

 List (1899), 1, 266; Grant, Ibis (1894), 503; ibid. (1896), 110; 

 McGregor and Worcester, Hand-List (1906), 42. 



Basilan (Everett, Steere Exp.) ; Bongao (Everett) ; Catanduanes (Whitehead) ; 

 Cebu (Everett, Bourns d Worcester) ; Leyte (Everett) ; Luzon (Everett, Meyer, 

 Steere Exp., Whitehead, McGregor); Marinduque (Bteere Exp.); Mindanao 

 (Cuming, Everett, Koch rf Schadenberg, Steere Exp., Bourns & Worcester, Celesfino, 

 Goodfellow) ; Mindoro (Steere Exp., Everett, Porter) ; Samar (Steere Exp., 

 Bourns rf- Worcester) ; Sulu (Bourns d Worcester) ; Tawi Tawi (Bourns d Wor- 

 cester). 



"Adult. — Above pale brown with a purplish gloss and the feathers 

 irregularly spotted or margined with white at their tips; hind neck and 

 interscapulary region lighter than the rest of the back, the feathers 

 tipped with pale rufous, and ocellated with large rounded spots of white; 

 head much crested, ashy black, the feathers slightly margined with 

 rufous and spotted with white; sides of face and tliroat ashy gray, the 

 latter varied with oval markings of whitish; under surface of body very 

 light tawny, ocellated all over with spots or half bars of white, the latter 

 more distinct on the under tail-coverts ; the thighs and under wing-coverts 

 a little darker and more thickly spotted with white; wing-coverts dark 

 brown, minuteh^ spotted witli white ; primaries brown, wliitisli on inner 

 web, black at tip, and crossed with a black bar about the middle of the 

 feather; secondaries pale brown like the back, with white tips and faint 

 indications of obsolete whitish bars on tlie feathers; upper tail-coverts 

 brown, darker before the tips, which are white, and having remains of 

 rounded white spots concealed or obscured by the brown color of tlie 

 feathers; tail pale brown, narrowly tipped with whity bi'own, and crossed 

 with two broad bands of blackish brown, one subtermiual and the other 

 about the middle of the tail, a band of liglit brown before the lower black 

 band, and a broad band of wliity brown between the two l)lack bands. 

 Length, 635; culmen, 46; wing, 368; tail, 254; tarsus, 90. 



