278 NoriTATES ZOOLOGICAE XXV. 1918. 



14. Lanius collaris humeralis Stanl. (Common Long- tailed Pied Shrike). 

 (J 1. A common species found in the open country. 



15. Lanius mackinnoni Sharpe (Mackinnon's Grey Shrike). 



(J 1 , ? 1 , 1 mmat. 1 . Although a common species, it was not obtained on 

 Elgon, but in the plains below. 



16. Lanius collurio Linn. (European Red-backed Shrike). 



cJ 1. This specimen was shot on its northward migration in March. 



17. Corvinella corvina affinis Heugl. (Yellow- billed Giant Shrike). 

 cJ 1, ? 1, Juv. 3 I. Obtainedinthelowcountry west of Elgon. Common. 



COBVIDAE. 



1. Rhinocorax affinis Riipp. (Thick- billed Crow). 



o 2. These birds were occasionally seen in pairs on Elgon. They are 

 not common and are difficult to procure. 



DICKURIDAE. 



1. Dicrurus aJer assimilis Sharpe (Common Black Drongo). 

 (J 2. Common in the low country. 



2. Dicrurus coracinus Verr. (Western Black-winged Drongo). 



(J 2, ? 1. These birds apparently extend from Cameroon to Elgon. They 

 were especially common during the rains. 



OKIOLIDAE. 



1. Oriolus oriolus Lin. (European Golden Oriole). 



(J Juv. 1. These birds were fairly common on Elgon during both the south- 

 ward and northward migration, but they were wild and difficult to obtain. 



Although shot in April this male shows little change in plumage from young 

 to adult. 



2. Oriolus larvatus rolleti Salvad. (White- winged Black-headed Oriole). 



<J 1, ? 1. The female has a small wing measurement as compared to the 

 male, 12."} mm. and 139 nnn. 



3. Oriolus larvatus percivali Sharpe (Black- tailed Black-headed Oriole). 



(J 4, ? 2, Juv. cJ 1. Apparently a common bird on Elgon. The bright- 

 ness of the plumage varies greatly in individuals, thus one male has the mantle 

 coverts, and underside bright cadmium yellow, without any trace of olive-green 

 wash, and has the outer web of the inner secondaries edged with yellow. 



It would appear that the young of this species assumes a black head, slightly 

 mixed with yellow, especially on the throat, with its first plumage and not its 

 second as is the case in 0. rolleti. 



