266 MANUAL OF PHILIPPINE BIRDS. 
Diagnosis.—Similar to Ninox reyi but pale spots of primaries few, 
fulvescent, very slightly spotted *: white; and abdomen, flanks, and 
thighs ocherous-fulvous, not whi¥® spotted with brown. Length, 241; 
wing, 195.* 
This is a little-known species of which more specimens should be 
examined and compared with Rey’s hawk owl. 
226. NINOX SPILOCEPHALA Tweeddale. 
TWEEDDALE’S HAWK OWL, 
Ninox spilocephala TWEEDDALE, Proc. Zool. Soc. (1878), 940; SuHarPe, Hand- 
List (1899), 1, 290; McGregor and WorcESTER, Hand-List (1906), 47. 
Basilan (Everett, Steere Exp., Bourns & Worcester, McGregor); Mindanao 
(Everett, Steere Bxp., Bourns & Worcester, Celestino). 
Adult.—Very similar to Ninox philippensis from which it differs in 
having the head and neck spotted with rufous or tawny brown and the 
white spots on primary- and secondary-coverts larger ; decomposed feathers 
below eye unusually long and entirely covering the true ear-coverts. A 
male from Basilan is 230 in length; wing, 177; tail, 83; culmen from 
base, 22; tarsus, 26. Female, length, 230; wing, 158; tail, 82; culmen 
from base, 21; tarsus, 28. 
“Very common in the islands where it occurs. Hides among thick 
vines or bushes during the day. Feeds on beetles, grasshoppers, and the 
like. Iris yellow; legs and feet dirty, ight yellow; bill pale greenish 
horn-color. ‘Ten specimens average, 214 in length; wing, 162; tail, 76; 
culmen, 15; tarsus, 28; middle toe with claw, 22.” (Bourns and 
Worcester MS.) 
227. NINOX SPILONOTA Bourns and Worcester. 
SPOTTED HAWK OWL, 
Ninox spilonotus BourRNS and WoRCESTER, Minnesota Acad. Nat. Sei. Oce. 
Papers (1894), 1, 8. 
Ninox spilonota SHARPE, Hand-List (1899), 1, 290; McGrecor and Wor- 
CESTER, Hand-List (1906), 47. : 
Cebu (Bourns & Worcester, McGregor); Mindoro (Platen, Everett, Bourns & 
Worcester); Sibuyan (Bourns & Worcester, McGregor); Tablas (Bourns & 
Worcester). 
“Sexes alike.—General color of upper surface fulvous-brown; feathers 
of head, nape, interscapulars, and wing-coverts spotted with light rufous- 
brown giving the parts in question a decidedly speckled appearance ; rump 
fulvous-brown, upper tail-coverts faintly spotted with pale rufous-brown ; 
tail nearly black with nine narrow transverse bands of light rufous-brown ; 
*Sharpe’s diagnosis of this species follows: “Similis N. reyi, sed maculis 
pallidis primariorum paucis fulvescentibus, minime albo quadratim notatis, et 
abdomine, hypochondriis, et tibiis ochrascentifulvis, nec albis brunneo maculatis 
distinguenda. Long. tot. 9.5 poll. ale 7.7.” 
