216 ON BIRDS FROM THE CONGO 



17. t u s cape n sis, Smith. 



Asio capensis, Sharpe , Birds S. Afr. p. 78. 

 Otus capensis, Boc. Om. d'Ang. p. 61. 



An adult female from Humpata, '60 October. 



Iris brown , bill black. — Contents of stomach : Insects. 



18. N o ctu a capensis (Smith). 



Citrine capensis, Sharpe, Birds S. Afr. p. 77. 



Two males and a female, November and December, 

 from the Umbella- and Kasinga River. 

 Iris , bill and feet yellow. 



19. No ctu a per lat a (Vieill.). 



Carine perlata, Sharpe, Birds S. Afr. p. 77. 

 Glaucidium perlatum, Boc. Orn. d'Ang. p. 60. 



Male and female, the first from the Kakelle River, 

 12 January, the latter from Otjipahe (Huilla), 14 March. 



The male is but faintly , the female strongly spotted with 

 white on the whole upper surface. 



Iris, bill and toes yellow. 



20. C a p r imulg u s rufigena, Smith. 



Caprimulgus rufigena, Sharpe, Birds S. Afr. p. 85; — Boc. Orn. 

 d'Ang. p. 154; — Gurney, Ibis 1877, p. 341 ; id. id, 1880 , p. 259. 



Eleven specimens, from Pompenini (1), Quipanhime (1), 

 Otjipahe (2), River Husio (1), Kasinga River (6). 



There is much difference in size and coloration amongst 

 these specimens. The largest one, a female, has the wing 

 16,8 cM., the smallest 14,5 cM. 



The difference in coloration is certainly due to age, as 

 there are in the series specimens with the cross-bars on 

 the primaries nearly fully developed , others wanting them 

 at all, and between those there are different intermediate 

 stages of development , represented by this series of speci- 

 mens. Peculiarly enough there is no fully adult specimen , 



Notes from the Leyden Museum , Vol. X. 



