Birds of Celebes: Caprimulgidae. 
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II, 20; (3) id., ed. Hume’s Nests & Egg. Ind. B. 1890, IH, 45; (4) Hartert, Cat. 
B. XVI, 1-892, 537, pt.; (5) id., Ibis 1892, 282, 283 (intermediate forms). 
g. Caprimulgus albonotatus (1) Oates, B. Brit. Burmab 1883, II, 19, ? pt. ; (2) Hartert, 
Cat. B. XVI, 1892, 541 (ex Mont. Himalaya). 
Distribution. Himalayas, mountains of Burmab and Assam, Tenasserim, Siam and China. 
Variation. On comparing good series of birds from Tenasserim, Burmab, and Assam it 
has been found that in the latter localities many intermediate phases between the 
typical macrurus and macrurus albonotatus occur, so that it is impossible to draw 
any line between the two forms. Specimens from the foot of the Himalayas also 
may be regarded as intermediate between the true albonotatus and macrurus (after 
Hartert f 5). 
“Specimens from Borneo”, says Mr. Hartert, “are very dark and small: . . . 
specimens from Waigiou and Arn are perfectly similar to those from North Borneo; 
they belong to the very dark blackish island-form”. 
Egg (of the species). Australia — 2 in number, light rich cream-colour, fading to whitish 
after being emptied, clouded all over with fleecy markings of pale slaty lilac, which 
appear as if beneath the surface of the shell; 28 X 21 mm (Earns ay a 9)\ West 
Java — 2, elliptical, faint white tending to yellowish, marked with scattered spots, 
mostly not large, of reddish grey-brown and ash-grey, the latter in particnlar numerous 
towards the blunt end, though not forming an appreciable circlet; 28 — 30 X 21—22 
(Bernstein, J. f. 0 . 1859, 182); Tenasserim — 2 in number; somewhat cylindrical 
ovals; shell very fine and smooth, excessively close-grained, very thin; delicate creamy 
pink, everywhere rather thinly spotted, streaked, clouded, and marbled with very 
pale, somewhat brownish purple, and very pale subsurface -looking inky grey; (ten 
specimens) 29 — 33 X 20 — 23 mm (Hume f 3). 
Nest. None — the eggs are laid upon the bare ground: Australia (Earns, a 9)\ Tenasserim 
(Bingham f 3)\ Java — a slight depression, upon a few bamboo-leaves (Bern- 
stein 1. c.). 
Breeding season. Tenasserim — March, April (Bingham f 3). 
The right of C. macrurus to be included in the Celebes avifauna rests upon 
two specimens, obtained by von Eosenberg or Eiedel in Gorontalo. These 
latter were determined by Briiggemann, who pointed out that Lord Walden’s 
specimen of a Caprimulgus obtained by Meyer in Celebes appeared to be 
identical wdtb them. In this Brnggemann was in error; Meyer’s specimen 
has since been made the type of a distinct species, Caprimulgus celehensis Grant. 
Mr. Everett obtained C. ?nacrurus in Saleyer and Djampea. A nestling from 
the latter island shows that the species breeds there. 
It is probable that C. macrurus is not strictly stationary; the Nightjars feed 
upon insects, which become scarcer at certain seasons, when local movements 
on the part of the birds will probably take place. Such, in particular, should 
be the case in the southern parts of Australia. Like the Owls, the Celebes 
Nightjars appear to have nothing to say on the question of the former distribu- 
tion of the land and water round about; like them they appear from their 
nocturnal habits to be specially liable to be carried across straits of the sea by 
winds, and if in addition the species has migratory tendencies its range will be 
likely to become all the wider. Whereas, for instance, one finds two distinct 
