BIRDS OF ETHIOPIA AND KENYA COLONY 



37 



E. s. hamsoni is considered a sjaionym. It has been stated that 

 birds from the west of Lake Rudolf differ from specimens from the 

 south end of the lake and from Northern Guaso Nyiro River in 

 having the chestnut of the throat separated from the black of the 

 abdomen by a broad white band, but this character appears to be 

 inconstant. Birds of both types were collected near Hor. It may 

 be that east of Lake Rudolf the two forms meet and blend and that 

 the variation in the present series is so explained. 



The size variations of this species are not particularly extensive, 

 but inasmuch as this lark is scarce in collections I am givino- the 

 measurements in table 6 of all the adult and subadult birds (not 

 immature ones). 



Table 6. — Measurements of 35 adult and suhadult specimens of Ereruopterys 



signata 



106220 — 37- 



