212 DR, p. L. SCLATKR ON THE BTRDS OF BORNEO [May 26, 



once or twice seen it, evidently asleep, on a low branch in the low dark 

 thickets about Martapora, and each time with the huge mouth wide 

 open. 



[Mr. Mottley's collection contains two pairs of this bird. The 

 sexes, as has been noted by Bonaparte, are very diiFerent in colour- 

 ing, the male being minutely freckled with brown and black, and the 

 female bright rufous. Horsfield's figure represents the female. 

 Mr. Mottley's female specimens agree with Dr. Horsfield's type. 

 Batrachostomns stellatus (Podargus stellatus, Gould, P. Z. S. 1837, 

 p. 43) of Malacca is obviously a diiferent species, as I have ascer- 

 tained by examining the typical examples in the British Museum. 

 B. auritus, Gould (Icon. Av. ii. pi. 7), is also easily known by its 

 larger size. B. crinifrons, Temm. (^B.psilopterns, G. R. Gray), from 

 Batchian and Gilolo, is likewise a well-marked species. Whether 

 the other three species given by Cabanis and Heine (Mus. Hein. ii. 

 pp. 123-4) are good or not I cannot say. They have omitted to enu- 

 merate in their list Batrac/iostomus moniliger of Ceylon. — P. L. S.] 



41. Caprimulgus affinis (Horsf.), Moore & Horsf. Cat. 

 p. 114. {Chabak.) 



An exceedingly common bird on our bare and long hills, where it 

 breeds. It sits during the day among the stones, not rising until 

 nearly trodden upon. In the evening some hundreds may be seen 

 on the wing about my house, sweeping in wide circles, and constantly 

 repeating a shrill chirp, which may be heard, when there is moon- 

 light, through the night. At this time they often perch on promi- 

 nent objects, such as the poles of the fences and the carved pieces of 

 wood with which the Malays ornament their roofs, but this I have 

 never seen them do in the daytime. The eggs are laid without nest 

 among the bare stones, and are, as well as the young, like those of 

 our English species ; the mother, too, employs the same arts to tempt 

 intruders away from her treasures. 



42. Caprimulgus, sp. 1 (Taktan.) 



Appears to be rare : my hunter procured this specimen at Pen- 

 garon. 



[This is a well-marked species of Caprimulgus, with the inner web 

 of the outer tail-feather in the male terminated by a square white 

 mark. It does not seem to be in the British Museum ; but I am 

 unwilling to add to the confusion already prevalent in this group by 

 describing isolated species. — P. L. S.] 



Fam. Cypselid^. 



43. Macropteryx klecho (Horsf.). {Laniffan.) 



Common in the drj'^ season. I believe the Cypselida are all more 

 or less migratory here. 



44. Collocalia nidifica, G. R. Gray : Moore, Cat. p. 98. 



