E. LÖNNBERG, BIRDS FROM EASTERN CONGO. 13 



62. Circus niacrourus Gm. 



1 $, Rutsburu 7? 1914. As this bird is a migrant the 

 date quoted appears rather stränge. 



63. Kaupifalco monogrammicus Tem. 



1 specimen from Beni, Jan. 1914. This beautiful Hawk 

 is not recorded by Reichenow from the Great Lake district, 

 but Sassi has received a specimen from Beni — Mawambi 

 collected in Oct. 



64. Accipiter^ beuiensis n. sp. 



1 (^, Beni, July — Aug. 1914. Iris »rouge anglais». 



Upper parts, including the upper tail coverts, uniform 

 slate black, but the feathers of the nape with concealed white 

 basal parts. Sides of head »deep neutral grey» above, gra- 

 dually shading to »neutral grey» below. Throat white, finely 

 barred with grey. The lower parts have a reddish brown 

 ground colour which is difficult to describe exactly. It re- 

 sembles Dauthenay's »madder brown» (Rép. des Coul. 334, i), 

 and R[dgway's »pecan brown» (Color standards, 1912, Pl. 

 XXVIII) without being fully identical with either. The 

 feathers of the chest and breast are partly barred with 

 white, but some haye the uniform red brown colour as also 

 is the case with those of the flanks and thighs. The middle 

 of the belly is white with faint traces of narrow dusky bars. 

 Lower tail coverts white. Upper wing coverts like the back. 

 The scapulars have their concealed basal parts more or less 

 white, especially on the inner web. Wing quills blackish 

 brown with more or less of the proximal portion of the inner 

 web white and with black bars. These bars are more con- 

 spicuous on the lower side of the quills because the quills 

 are paler below, and the white or whitish colour extends 

 there över the greater part of the inner web. Under wing 

 coverts white, the larger with some few dusky transverse 

 bars. Tail black with narrow white tip to the quills except 

 the outermost pair, and with three white transverse spöts on 

 the inner web of each tail feather. 



^ Accipiter is accepted as a »noraen conservandum». 



