BIEDS OF ETHIOPIA AND KENYA COLONY 



397 



the cai])al joint and the fifth or sixtli primary, the hitter being de- 

 cidedly later in origin than the former. The tail molt is more or 

 less centrifugal but in some cases it seems to begin not with the 

 central rectrices but with the next pair. 



The size variations of adults are shown in the following table : 



Mearns observed this bird at the Abaj^a Lakes, March 18-26, 

 where he noted 4 birds; on the Gato River, March 29 to May 17, 100; 

 Bodessa and Sagon River, May 19 to June 6, 58 seen; and Mar 

 Mora. June 15, 14 birds. 



PHOENICULUS BOLLEI .lACKSONI <Sharpe) 



Jrrisor jacksonl Sharpe, Ann. Mag. Nat. Hist., .ser. G, vol. 6, p. 503, 1890: 

 Kikuyu country, Kenya Colony. 



Spcciinens collected : 



Male, Escarpment, Kenya Colony, September 5, 1912. 



The white-headed kakelaar is currently considered to have two 

 valid subspecies, as outlined by Claude Grant " and Sclater ; ^^ the 

 typical one of the Gold Coast, Southern Nigeria and the country 

 east to the Ubangi River, which has the head and throat deep buff 

 in color, and the eastern race, jacksoni^ of central Kenya Colony 

 west to Elgon, Uganda, and the eastern Belgian Congo, in which 

 the head and throat are whiter, less buffy than in hoUei. I have 

 seen no typical hoJlel and oidy a small series of jacksoni but my 

 observations, together with those of Lonnberg,^- Granvik,^^ and 



•" Ibis, 1913, p. 287. 



" Syst. .\vium Kthiop., 1924, pp. 2:M-23.5. 

 'MCuiiKl. Sv. Vet. Akiul.-IIandlgr., 1911, pp. 7()-77. 

 >'Journ. f. Oniith., 192o, Soiuk>rheft, pp. 111-114. 



