232 Mr. V. G. L. van Someren on Birds 



Cercococcyx mechowi. 



(? 1-3. lO.xi. 14; 3.xi, 13; 5.ix.l3. 



The adult specimens of Mechow's Long-tailed Cuckoo 

 were obtained in the dense forest. My collector, who pro- 

 cured them, states that they go in pairs or singly, and that 

 they are very timid, making off at once if they see one 

 approaching. It is a rare bird. 



Localities. Sezibwa River, Mabira, and Kasala Forest, in 

 Uganda. 



CticuItis mabirae. 



Cuculus mabirce van Someren, Bull. B. 0. C. xxxv. 1915, 

 p. 116 : Kasala Forest, Uganda. 



^ 1-2. 24. vi. 14 {type of the species) ; — . viii. 11. 



This species is midway between C.jacksoni and C. gahon- 

 ensis, specimens of which were obtained. It differs from 

 C.jacksoni in not being heavily barred with black on the 

 underside, and in having a much paler chestnut throat and' 

 crop. The tail is blue-black, the centre feathers being 

 uniform or with minute white spots on the midrib, the 

 outer feathers with white spots on the midrib and on the 

 inner web. The inner webs of the primaries have large ill- 

 defined white spots. The ear-coverts are light chestnut. 

 Wing measures 179 to 180 mm., tail 173-175 (skin). 



This is a forest-bird, keeping to the thick undergrowth 

 and trees. There was one specimen of this bird in the 

 Tring Museum, collected by Hughes in the Mabira Forest. 



Localities. Kasala and Mabira Forest, in Uganda. 



Cuculus jacksoni. 

 ^. 19. viii. 11. 



An adult in almost full plumage. A rare forest-species. 

 Locality. Mabira Forest, in Uganda. 



Cucuhis clamosus. 

 , cS 1-2. 28.xi. 14; SO.xii. 14. 



One specimen is unfortunately damaged. The series in 

 the Tring Museum shows a great variation in plumage, from 



