26 
Mr. G. L. Bates— Field-Notes on the 
without the bird, till a man shot the bird numbered 2937 
and secured its egg. That all the Nightjar’s eggs I have 
obtained at Bitye belong to this species I feel sure, as no 
other species has been found there except as a temporary 
visitor. I am sure that this is the case with the Cosmetornis 
that I got, and the European Nightjar certainly could not 
have laid these eggs. 
Never more than one egg is found in a place. The egg 
that was accompanied by the bird measured 33 x 24 mm. 
The others varied in length from 31*5 to 34’5 mm., and in 
breadth from 24 to 25 mm. 
[Five eggs are of a perfectly oval form and somewhat glossy. 
The ground-colour is white or very delicate pubescent-white. 
In four specimens the markings, which consist of brown and 
pale lavender-grey blotches, are distributed over the entire 
shell : in a fifth specimen almost all the brown markings 
are concentrated into a cap at one end, while over the 
remaining part of the shell there are a few small blotches of 
pale lavender-grey and a few very small spots of brown.— 
O.-G.] 
902 a. Caprimulgus sharpii Alexander. [Mvomvot. ] 
Sharpe, Ibis, 1907, p. 433. 
Caprimulgus trimaculatus sharpei Reich. V. A. ii. p. 358. 
My single specimen of this Nightjar was shot in the 
neighbourhood of a great bare rock several acres in extent, 
such as are found here and there in the forest. It was the 
same spot—a place I pass on the road to Bitye—where I 
shot the only specimen of CEdicnemus senegalensis that I have 
ever seen ( f The Ibis/ 1907, p. 423). That the rocky locality 
was significant for the Nightjar first occurred to me when I 
read in Boyd Alexander’s book (‘ From the Niger to the 
Nile/ ii. p. 22) that he found the same or a closely allied 
species right across from the Gold Coast Hinterland to the 
Ubangai region, always in rocky places. 
916. Cosmetornis vexillarius. 
Sharpe, Ibis, 1907, p. 432. 
My three specimens of this Nightjar were shot within a 
lew days of one another, and were males without their long 
