358 MANUAL OF PHILIPPINE BIRDS. 
Adult.—Forehead, crown, nape, sides of head and neck, wings and tail 
black with very dark steel-blue gloss; lores deep black; remainder of 
plumage deep smoky brown, ex@#t under tail-coverts and a patch on 
lower flank which are white; shafts of under tail-coverts dark brown. A 
male from Palawan measures: Length, 239; wing, 203; tail, 67; ex- 
posed culmen, 10; tarsus, 17. A female from Culion measures: Length, 
229; wing, 200; tail, 68; exposed culmen, 9; tarsus, 16. 
Worcester and Celestino collected a large series of giant swifts in 
Culion and Palawan. I have seen large swifts in Benguet Province and 
in Calayan, and Worcester observed a large flock in northern Luzon which 
may have been either C. gigantea or C. dubia. 
321. CHAETURA CELEBENSIS (Sclater). 
CELEBES SPINE-TAILED SWIFT. 
Chetura gigantea var. celebensis SCLATER, Proc. Zool. Soc. (1865), 608. 
Chetura celebensis HARTERT, Cat. Birds Brit. Mus. (1892), 16, 467; MEYER 
and WIGLESwortH, Bds. Celebes (1898), 1, 329, pl. 12; SHARPE, Hand- 
List (1900), 2, 91; CLARKE, Ibis (1894), 533; Mearns, Proc. Biol. 
Soe. Wash. (1905), 18, 185; McGrecor and WorcESsTER, Hand-List 
(1906), 59. 
Basilan (Mearns) ; Negros (Keay). Celebes. 
Adult.—Deep steel-blue, back and rump with purple gloss; two white 
spots on the sides of the forehead ; sides of the abdomen and under tail- 
coverts white. In size similar to C. gigantea.” (Hartert.) 
Clarke gives the following notes on a specimen obtained in Negros: 
“The back is an admixture of dark brown, or brownish black, and deep 
steel-blue, each feather having a broad subterminal band of blue with an 
edging of dark brown, which conceals the blue to a considerable extent, 
so that the brown predominates. The tail and secondaries are glossed 
with green and blue in about equal proportions. Length, 241; wing, 216; 
tail, 73; tarsus, 18.” 
“Female.—A specimen in the Sarasin Collection marked ‘2 juv.’ (but 
we can not see any signs of immaturity) answers to Mr. Hartert’s . 
description of the species, except that the lores are reddish brown not 
white. Wing, 208; tail, 63; tarsus, 16; bill from nostril, 6.” (Meyer 
and Wiglesworth.) 
Mearns gives the following measurements of two males from Basilan: 
“Length, 240, 255; wing, 215; tail, 75; bill from frontal feathers (chord), 
8.5, 9.6; bill from anterior margin of nostril, 6.1, 7.1; tarsus, 19, 20; 
middle toe with claw, 22.5.” 
But six specimens of this large swift are known, three from Celebes, 
one from Negros, and two from Basilan. 
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