Luzon (Whitehead, McGregor, Bartsch); Mindoro (Whitehead, Bourns & Worcester, McGregor).

Adult.—Above dull olive-green, brighter on the rump, wings, and tail; sides of head and ear-coverts slightly washed with olive; chin, throat, and chest hair-brown streaked with white and slightly washed with olive; abdomen white faintly washed with yellow; sides and flanks more dusky; crissum pale lemon-yellow; axillars and wing-lining white faintly washed with yellow. Length, about 165. Male, wing, 82; tail, 70; culmen from base, 15; bill from nostril, 10; tarsus, 22. Female, wing, 79; tail, 66; culmen from base, 16; bill from nostril, 9.5; tarsus, 22.

Young.—A very young bird taken in April resembles the young of H. illex. Above dark walnut-brown; below vinaceous-cinnamon; three or four outer primaries edged with pale gray; the inner primaries edged with olive-green, some of them washed with reddish brown.

“Very rare in Mindoro. But a single female specimen obtained. It measures 165 in length; wing, 78; tail, 66; culmen, 17.8; tarsus, 21; middle toe with claw, 19.” (Bourns and Worcester MS.)

589. HYLOTERPE WHITEHEADI Sharpe.
PALAWAN THICKHEAD.

Palawan (Whitehead, Platen, Bourns & Worcester, Everett, Celestino, White).

Adult.—Upper parts hair-brown; edges of wing-feathers and of rectrices slightly more ashy brown; auriculars and sides of neck hair-brown; throat white with faint drab-gray streaks; chest drab-gray; remainder of under parts white. Male, wing, 79; tail, 62; culmen from base, 17; bill from nostril, 10; tarsus, 19. Female, wing, 78; tail, 65; culmen from base, 16; bill from nostril, 10; tarsus, 18.

“Quite rare in the localities collected in by us. A male measures, length, 149; wing, 80.5; tail, 60; culmen, 17.5; tarsus, 18.8; middle toe with claw, 16. A female, length, 159; wing, 82; tail, 62.7; tarsus, 18.5; middle toe with claw, 17.5; culmen, 22. Iris dark brown; legs, feet, and nails light slate; bill black.” (Bourns and Worcester MS.)