430 ZOOLOGICAL RESULTS OF THE RUWENZORl EXPEDITION. 



Caprimulgus natalensis Smith. 



Caprimulgus natalensis Reich. Vog. At'r. ii. p. 367 (1902) ; Jackson, Ibis, 1906, p. 521 [Toro] ; 

 Grant, Ibis, 1907, p. 601 [Baro R.]. 



a. d . SO miles W. of Entebbe, 3500 ft., 2nd Dec. [No. 1029. D. C] 



b. d . Mokia, S.E. Ruwenzori, 3400 ft., 30th April. [No. 1461. I). C] 



c,d. d et 2 imm. Mokia, S.E. Ruwenzori, 3400 ft., 13th & 16th June. [Nos. 3474, 

 3486. B. B. W.] 



Iris dark brown ; bill brown ; feet flesh-colour or light brown. 



These specimens agree perfectly with birds from Natal. Mr. Alexander has 

 recently described two very closely allied species or rather subspecies of this group, 

 viz. C. chadensis, from Lake Chad, and C. gabonensis, from Gaboon [cf. Bull. B. O. C. 

 xxi. p. 90 (1908)]. 



[The Natal Nightjar was seen near Entebbe, and a few were met with on the plains 

 at the south end of Ruwenzori ; but it was not a common bird. — B. B. W.~\ 



C'OSMETORNIS VEXILLARIUS (Gould). 



Macro dipteryx vexillarius Reich. Vog. Afr. ii. p. 371 (1902). 

 Cosmetornis vexillarius Jackson, Ibis, 1906, p. 520 [Toro]. 



a. 2 . Mubuku Valley, E. Ruwenzori, 5000 ft., 6th March. [No. 3180. B. B. IF.] 

 b-i. d 2 et d 2 imm. Mokia, S.E. Ruwenzori, 3400 ft., lst-30th May. [Nos. 266, 



d. d. 



280. B. E. D. ; 1482. I). C. ■ 3299, 3304, 3305, 3428, 3429. B. B. IT.] d 



Jc~y. d 2 • Mokia, S.E. Ruwenzori, 3400 ft., 13th-29th June. [Nos. 1645, 1659, 



d. d. d. d. a. d. 



1664, 1671, 1672, 1673, 1674, 1675, 1681, 1690, 1695, 1706, 1707. I). C. ■ 3475, 3476. 

 R. B. IV.) 

 z-e'. d 2 et 6 imm. Mokia, S.E. Ruwenzori, 3400 ft., 4th-8th July. [Nos. 474. 



476, 4b0. B.E. 1).; 1716, 1717, 1724. 1). C] 



Iris, bill, and feet dark brown. 



The large series of this species collected by the Expedition includes all stages of 

 plumage of both the male and female. 



[The Pennant-winged Nightjar was extraordinarily numerous on the dry plains at 

 the S.E. end of Ruwenzori between the foot of the mountains and Lake George. 

 It was no uncommon sight in the evenings to see fifteen or twenty of these curious- 

 looking birds drifting about around the camp, performing curious antics high in the 

 air — diving, flopping, and twisting about like Lapwings, and often looking more 

 like tattered pieces of paper blown by the wind than anything else. 



The long pennant-like feathers were just beginning to make their appearance in 

 the first week in May. 



