HYLOTERPE. 601 



sienna-brown and larger underlying markings of bluish gray. Measure- 

 ments 23 mm. by 17 mm. 



"Nest cup-shaped, very similar to that constructed by./o/e philippensis, 

 and composed of similar materials fine roots and dead leaves. It was 

 situated in the undergrowth of old forest in a small tree about three 

 meters from the ground, and the female bird was obtained/' (Grant and 

 Whitehead.) 



586. HYLOTERPE FALLAX McGregor. 



CALAYAN THICKHEAD, 



Hyloterpe fallax MCGREGOR, Bull. Philippine Mus. (1904), 4, 27; McGREGOB 

 and WORCESTER, Hand-List (1906), 93. 



Sa-mot ba-sit, Calayan. 

 Calayan (McGregor). 



Adult. Top of head hair-brown washed with olive-green; remainder 

 of upper parts, including exposed edges of wing-feathers and rectrices, 

 dark olive-green; ear-coverts drab; chin and throat white with distinct 

 dusky shaft-lines, bordered posteriorly by a crescentic, dusky band of 

 drab, washed posteriorly with olive ; breast, abdomen, and crissum yellow, 

 pale for the greater part, but bright lemon-yellow on crissum; sides of 

 breast and flanks dusky olive-green; feathers of thighs gray, tipped with 

 yellow; edge of wing, under wing-coverts^ and axillars white washed 

 with yellow; inner ^webs of quills edged with white. Bill black; legs 

 plumbeous ; nails flesh-color. Measurements of male cotype : Length, 152 ; 

 wing, 83; tail, 64; culmen from base, 17; bill from nostril, 11; tarsus, 

 21. Female cotype, wing, 79 ; tail, 67 ; culmen from base, 17 ; bill from 

 nostril, 11; tarsus, 21. 



Immature. Sides of face and pectoral band washed with faint reddish 

 brown; edges of wing-quills reddish brown. Bill dark brown, lower 

 mandible lighter. 



587. HYLOTERPE ILLEX McGregor. 



CAMIGUIN THICKHEAD. 



Hyloterpe illex MCGREGOR, PJiil. Jour. Sci. (1907), 2, sec. A, 348. 

 Camiguin N. (McGregor). 



Adult. Similar to Hyloterpe fallax, but slightly larger; breast and 

 flanks more strongly suffused with yellow. Male type, length, 183; 

 wing, 93; tail, 75; culmen from base, 17; bill from nostril, 11; tarsus, 

 21. Female, wing, 86; tail, 67; culmen from base, 16; bill from 

 nostril, 12; tarsus, 22. 



Young. A young bird taken in June has most of the head and 

 body covered with vinaceous-cinnamon down, darker on the back; under 

 tail-coverts pale yellow; wing-feathers and rectrices blackish brown, 

 edged with olive-green; innermost secondaries and secondary-coverts 

 washed with vinaceous-cinnamon. 



