396 Lieut. C. W. Mackworth-Praed on [Ibis, 



I am not at all certain which subspecies this Swift belongs 

 to. The wing-measurement is very small for any of the 

 eastern races. I should not be surprised if specimens from 

 this part of the country did not have to be regarded as 

 racially distinct. 



Caprimulgus donaldsoni. 



Caprimulgus donaldsoni Sharpe, Bull. B. O. C. iv 1895, 

 p. xxix [Hargeisa, Soraaliland] ; Reichw.Vog. Afr. ii. 1902, 

 p. 354. 



cJ. Tsavo Swamp. 8th August. Wing 132 mm. 



Iris dark brown ; legs brown. 



This Nightjar was very numerous at one point just short 

 of the swamp, several dozen being seen in the evening. 

 I constantly saw Nightjars everywhere, but could not of 

 course determine the species on the wing. 



There are only three examples of this species in the 

 British Museum. 



Caprimulgus trimaculatus tristigma. 



Caprimulgus tristigma iiiipp. Neue Wirb. 1840, p. 105 

 [Gondar, Abyssinia]. 



Caprimulgus triinnculatus tristigma C. Grant, Ibis, 1915, 

 p. 307. 



(J. Ithanga Hills. 11th October. Wing 180 mm. 



Iris dark brown ; bill dark ; legs light brown. 



Apparently rare. 



Caprimulgus fossei. 



Caprimulgus fossei Hartlaub, Orn. W.-Afr. 1857, p. 23 

 [Gaboon] ; Reichw. Vog. Afr. ii. 1902, p. 36"). 

 (J. Nairobi. 22nd August. Wing 151 mm. 

 Iris, bill, and legs dark brown. 



Merops apiaster. 



Merops apiaster Linn. Syst. Nat. 1758, p. 117 [S. Europe] ; 

 C. Grant, Ibis, 1915, p. 299. 



(J?. Ithanga Hills. 2nd October. Wing, $ 146, 

 ? 138 mm. 



