Birds from British East Africa and Uganda. 309 



are tinged with buff. The immature female has the wing- 

 spots strongl}'^ washed with buff and the tip of the tail merely 

 tipped with buff. 



[Irides brown or dark brown, eyelids yellow-brown; bill 

 in male black, base flesh-colour ; in female brown, black at 

 tip; legs and toes brown or dirty-flesh.] 



I have not been able to examine any specimens actually 

 from the type locality ; Salvadori gives the wing-measure- 

 ment of his type as 175 mm. 



167. Tachornis parvus parvus. Abyssinian Palm Swift. 



Cypselus 'parvus Liclit. Verz. Doubl. 1823, p. 58: N.E. 

 Nubia. 



a. ? ? imm. Amala River, 5400 ft. Oct. 18. 



6. c??inim. Nakwai Hills, 3400 ft. Feb. 9. 



Total length in flesh : (J 7 inches, ? 6 inches. Wing ; 

 (J 140 mm; ? 135 mm. 



Both the specimens are in good clean dress, the male 

 being rather darker generally than the female. Neither 

 has any streaks on the throat, this part being plain-coloured 

 like the neck. Young birds with sandy edges to the feathers 

 show that in the first dress the throat is plain and that the 

 streaked throat is apparently only assumed by the full adult. 

 In between the first dress and the full adult there appears 

 to be an immature stage of plumage, which is similar in 

 every way to the adult, but the throat lacks the streaks. 



[Irides brown ; bill in male black, in female dark brown ; 

 feet in male blackish-flesh, in female brownish-flesh. In 

 the Nakwai Hills a large number were seen near a clump 

 of palm trees.] 



The following four races have been recognised by Reich- 

 enow in the Vog. Afrika, vol. ii. 1903, and by other 

 authors : — 



Tachornis parvus parvus Licht. op. cit. 



Tachornis parvus gracilis. 



Cypselus gracilis Sharpe, P. Z. S. 1871, p. 315 : Mada- 

 gascar. Wing given as 4*95 inches = 126 mm. 



