Ropinson & Kioss : Birds of West Sumatra. 241 
This goat sucker is very common, especially along the 
sea shore where it sits on the bare sand in full sunshine. 
The series No. 4449/4456 came from flat, sandy islets in 
the Sinamar river near Aur. When disturbed they flit a 
short distance away and then drop suddenly on to some 
spot, where they remain perfectly motionless, and are then 
hard to distinguish owing to the strong resemblance they 
bear to their surroundings. 
At night they fly very low, uttering their call note, 
which is a shrill squeak, and at dawn till six o’clock a.m. 
they are still busy catching insects. On moonlit nights 
they like to squat on bare sandy patches and roads. 
92. Caprimulgus indicus jotaka Temm. & Schl. 
é. Buo, Padang Highlands, 280 M. (March). 
Wing 206 mm. 
93. Caprimulgus concretus Bp. 
@. Talang Ampat, Bencoolen, 40 M. (No. 46). 
Wing 172 mm. : 
We have four topotypes of C. concretus from Paku 
Saribas, Sarawak—three males and a female. Except that 
the Sumatran female has many of the scapulars edged with 
buff whereas they are edged with ochraceous in the Bornean 
topotype (wing 171 mm.) the two are indistinguishable : 
but the Bornean males show that the colour of the scapulars 
is of no importance as they exhibit the same variation. 
Oberholser has separated an East Sumatran male from 
C. concretus on account of having the outer tail-feathers 
entirely without white or buffy tips or subterminal bands 
(C. mtrificus Oberholser, Smithsonian Mise. Coll. 60, No. 7, 
1912, p. 7, Siak River). Two of our Bornean males have 
large white patches on the ends of the outer tail-feathers : 
to the third the description of C. mirificus exactly applies. 
It seems evident, therefore, that the proposed form is based 
on a colour phase and has no existence in fact. 
94. Lyncornis temmincki Gould. is 
Pe eK p. 131. “4 
36,32. Balun, Muara Labu, Padang Highlands, 
480 M. 
2. Palupuh, Agam, Padars Highlands, 640 M. 
-@. Sukamananti, Ophir Districts, 200 M. 
é. Rimbo Pengadang, Lebeng, Bencoolen, 
1000 M. 
Iris dark brown, bill chocolate brown, tip upper mand- 
ible blackish brown, feet pinkish brown, tarsi brownish 
black with lighted seams between the scutes. 
