Birds from British East Africa and Uganda. 315 



wing 152, Dembi, c? , June, wing 157 (one of the types), 

 Senafe, <$ ^ April, wing 144; Britisli East Africa, Nyiro, c^, 

 April, wing 148, Kikuyu, May, no sex, wing 148, Nairobi, 

 ? , June, wing 151, Naivasha, ^ , December, wing 160; these 

 are all adult ; one young bird from Zomba, Nyasaland, 

 no sex, has a wing of 137 mm. 



The range of this resident bird would appear to be from 

 Senafe in Abyssinia to Zomba in Nyasaland. 



The character given by Salvadori of the yellow feet does 

 not hold good, and appears to be merely the way in whicli 

 these members happen to dry. 



There are three other species of Swift occurring on the 

 mainland of Africa, that may be confounded with the above 

 three forms, but which are really quite distinct from them ; 

 they are : — 



MiCROPUS MURINUS MURINUS. 



Cypselus muritius, Brehm, Vogelf. 1855, p. 46 : Siut, 

 Egypt. 



This is a very pale mouse-coloured (mausegrau) bird, 

 with an extensive white throat, and appears to be a winter 

 migrant to Egypt only, and does not occur elsewhere on the 

 mainland of Africa. Wing, ^ 169, no sex 170-158 mm., 

 in seven specimens from Egypt in the British Museum, only 

 three are dated, two February and one March. 



Cypselus paUidus Shelley (Ibis, 1870, p. 445 : Egypt) 

 is a synonym and the type, a c? , in the British Museum has 

 a wing of 169 mm. 



MiCROPUS MURINUS BREHMORUM. 



Apus apus brehmorum Hartert, Naum. Vog. Deutschl. 

 vol. iv. 1901, p. 233 : Madeira. 



On the average rather darker than true M. m. murinus. 

 Wing : Madeira, ^J , June, 175 mm,, J" , no date, 171 mm. ; 

 Swakop Biver, Damaraland, December, 176 mm. ; Benguella, 

 no date or sex, 170 mm. 



The single specimen from Benguella does not agree 

 perfectly with this race, having a darker forehead and but 



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