Birds of Celebes; Caprimulgidae. 
317 
pure tints, such as pure blue, yellow or red, but chiefly brown, grey, and dusky 
colours; often with “recognition marks” of white on the throat and tail. The 
bill is small and soft, the nasal aperture membranous and tubular, *the gape 
very wide, reaching below the eye. Five subfamilies of the Capnmulgidae may 
be distinguished ; their differences are pointed out below (p. 325) under 
Lyncornis macropterus. 
GENUS CAPRIMULGUS L. 
The true Goatsuckers may be recognised by their having a row of strong 
bristles above the gape directed forwards; no ear-tufts, a rounded tail with 
white patches on the outer rectrices of the male (usually absent in the female). 
Outer toe with four phalanges, claw of middle toe pectinated. The genus is of 
almost cosmopolitan distribution. 
99. CAPRIMULGUS MAORURUS Horsf. 
Horsfield’s Nightjar. 
Mr. Hartert’s careful researches on the Goatsuckers offer proof that C. nia- 
CTuvus as a species should be viewed as made up of two subspecies, i. e. the typical 
macruTUS ranging from Malacca to southern Australia (Ramsay) and C. Tnacruvus 
alhomtatus (Tick.) of N. India; while the territories from the foot of the Himalayas 
to Tenasserim produce intermediate forms. These latter might be distinguished 
as C. macrurus — alhomtatus. 
1. The typical Caprimulgus macrurus. 
a. Caprimulgus macrurus (Ij Horsf., Tr. Linn. Soc. 1821, XIII, 142; (11) Gld., B. Aiistr. 
1848, n, pi. 9; (3) id., Handb. E. Austr. 1865, I, 100; (4) Salvad., Cat. Ucc. Borneo 
1874, 117; (5) Briigg., Abh. Ver. Bremen 1876, Y, 464; (6) Salvad., Orn. Pap. 
1880, J, 528 (pt. — non ex India); (7) W. Bias., J. f. 0. 1883, 115, 122, 136; (8) 
Ramsay, Tab. List 1888, 2; (9) North, Nests and Eggs Austr. B. 1889, 29; (10) 
Salvad., Agg. Orn. Pap. 1889, I, 62; (11) Sbarpe, Ibis 1890, 22, 283, 288; 
(12) Everett, J. Str. Br. R. A. S. 1889, 153; (IB"'-’’) Hagen, T. Ned. Genoots. 1890, 
(2) VII, 142; (13) Hartert, Kat. Vogels. Seuckeub. Mus. 1891, 120; (14) id.. Cat. B. 
XVI, 1892, 537 (pt. non cx Tenasserim, Burma); (7,5^ id.. Ibis 1892, 281 — 283; (16) 
Hose, ib. 1893, 406; (IT) Mad., Aquila 1894, 97; (18) Bourns & Worces., B. 
iMenage Exp. 1894, 34; (lOj Blank, Eaun. Br. Lid. B. HI, 1895, 188, pt.; (20) Hart., 
Nov. Zool. 1896, 175, 562, 593; (21) id. Tierreicli, 1897, I, 54 (iypicus). 
b. Caprimulgus salvadorii (1) Sbarpe, P. Z. R. 1875, 99, pi. XXH, fig. I. 
For further synonymy and references see Salvador! ci G, a 10, Hartert a 14. 
Figures and descriptions. Gould a 11, a 3', Sbarpe hi, Salvador! a, 6, North a 9 (egg); 
Hartert a 14. 
Adult male. Upper surface pale brown, finely vermiculated with greyish, especially on the 
top of the head; centre of crown longitudinally streaked with brownish black; an 
indistinct fulvous band across the hind neck; back and rump marked with deep 
