HORSFIELD'S NIGHTJAR.

Caprimulgus macrurus Horsfield, Trans. Linn. Soc. (1821), 13,

pt. 1, 142; Hartert, Cat. Birds Brit. Mus. (1892), 16, 537; Sharpe,

Hand-List (1900), 2, 87; McGregor and Worcester, Hand-List (1906),

57; Oates and Reid, Cat. Birds' Eggs (1903), 3, 68, pl. 1, fig. 8.

Calamianes (Bourns & Worcester, McGregor); Palawan (Whitehead,

Steere Exp., Bourns & Worcester, Celestino); Papuan Islands,

northeastern Australia, Greater Sunda Islands, Java.

Male.--Forehead, crown, and nape grayish brown, finely vermiculated

with buff and brown, producing a nearly silvery appearance; down the

center of head to nape the feathers conspicuously marked with blackish

brown; an indistinct fulvous band across hind-neck connecting with a

bright fulvous patch on each side behind ear-coverts; back and rump

mottled with dark brown and a little fulvous; a large white patch on

throat, the longer feathers tipped with black, subterminally marked

with fulvous; sides of face, ear-coverts, chin, and a small area

posterior of white patch rich rufous with fine irregular black lines;

lower throat rufous, mottled with black; breast finely marked with

blackish brown and pale fulvous, a few feathers with large patches of

fulvous; abdomen, flanks, and under tail-coverts barred with brown;

wing-coverts blackish, each with a light fulvous terminal spot;

scapulars with black terminal spots and narrow fulvous subterminal

bars; white spot on first primary moderate and not reaching

shaft; on second, third, and fourth the white crosses both webs;

secondaries notched with dark rufous; tail-feathers blackish brown,

outer webs notched with fulvous; two outer pairs each with a large

white terminal area about 38 mm. long, involving both webs. A male

from Puerto Princesa, Palawan, measures: Length, 265; wing, 180;

tail, 140; tarsus, 16; middle toe with claw, 24.

"Female.--Differs from the adult male in having the outer web of

first primary spotted with rufous, in having pale rufous marks on

the primaries instead of white ones, in the white tips to the outer

rectrices being less in extent and tinged with buff or rufous,

speckled with brown on the tip of outer web.

"Young.--The markings are less developed in younger individuals;

the young male has the white patches on the primaries and rectrices

tinged with rufous and less in extent. The nestling is covered with

buffy down." (Hartert.)

"Iris dark brown, bill nearly black; legs and feet brown; nails

black. A male from Busuanga measures, 263 in length; wing, 184; tail,

135; culmen, 13; middle toe with claw, 22. A female from Palawan,

length, 250; wing, 222; tail, 135; culmen, 13; tarsus, 14; middle

toe with claw, 22." (Bourns and Worcester MS.)

A Manual of Philippine Birds · 第 649 / 1543 题