— 113 — 



\ 



The vaiiatioDS Lonnberg mentions are to be found in 

 i.iy collection and a few more as well. With reference to the 

 extent of the white patch on the head, there are great differences. 

 Thus, one individual has only the front part of the frontal region 

 white (13 cm.), another has the white extending 36 cm. back- 

 wards measured from the base of the bill, a third only 20 cm. 

 etc., etc. A young specimen has in the middle of the white 

 section, a large bronze-greenish glossy spot. 



In young individuals the bronze-green patches on the back 

 and under surface are washed with blue, which tint, however, 

 disappears more and more in old birds and is replaced by a more 

 uniform green, sometimes yellowish-green, glossy colour. 



The most remarkable bird in the collection is one which 

 entirely lacks the white on the chin and neck, only having 

 a few, 5 — 6, white feathers at the base of the bill on the upper 

 surface. 



If we compare the measurements given by the various 

 writers who have dealt with this race, we shall find surprising 

 differences. 



Lonnberg (op. cit.) gives 125—145 mm. for wing, 

 200—214 mm for tail, and 34—45 mm. for bill. 



Reichenow (op. cit., p. 243) has 125—130 mm., 

 180—210 mm., 35—45 mm. respectively. 



v. Someren (Nov. Zool., 1918, p. 273) cf 123— 133mm., 

 9 122—130 mm. (Kikuyu specimens 140—144 mm.) 



From the table below will be seen the great variation in 

 the various measurements and that my figures agree best with 

 those of Lonnberg: 



