228 MANUAL OF PHILIPPINE BIRDS. 
of a second basal one only visible below ; sides of head and throat blackish, 
cheeks somewhat shaded with ashe 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. Length, 660; wing, 
419; tail, 267; tarsus, 95.” (Sharpe.) 
187. SPILORNIS HOLOSPILUS (Vigors). 
PHILIPPINE SERPENT EAGLE, 
Buteo holospilus Vieors, Proc. Zool. Soe. (1831), 96. 
Spilornis holospilus SHARPE, Cat. Birds Brit. Mus. (1874), 1, 293; Hand- 
List (1899), 1, 266; Grant, Ibis (1894), 503; ibid. (1896), 110; 
McGrecor and WorcEsTER, Hand-List (1906), 42. 
Basilan (Everett, Steere Exp.) ; Bongao (Everett) ; Catanduanes (Whitehead) ; 
Cebu (Everett, Bourns & Worcester); Leyte (Everett); Luzon (Everett, Meyer, 
Steere Eup., Whitehead, McGregor); Marinduque (Steere Hap.); Mindanao 
(Cuming, Everett, Koch & Schadenberg, Steere Exp., Bourns & Worcester, Celestino, 
Goodfellow); Mindoro (Steere Exp., Everett, Porter); Samar (Steere Exp., 
Bourns & Worcester); Sulu (Bourns & Worcester) ; Tawi Tawi (Bourns & 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 throat 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; wimg-coverts dark 
brown, minutely spotted with white; primaries brown, whitish 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 the 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 the 
feathers; tail pale brown, narrowly tipped with whity brown, and crossed 
with two broad bands of blackish brown, one subterminal and the other 
about the middle of the tail, a band of light brown before the lower black 
band, and a broad band of whity brown between the two black bands. 
Length, 635; culmen, 46; wing, 368; tail, 254; tarsus, 90. 
pidgin 
