b PHALACROCORACIDJE PHALACROCOKAX 



HeUmayr. Journ. Ornitli. 1902, p. 236 [Zwartkops] ; Oates. Cut. B- 

 Eggs, ii. p. 199 (1902). 

 " Cape Cormorant " of some authors. 



Description. Adult. General colour above and below throughout 

 black, slightly glossed with purplish ; the feathers of the sides of 

 the back and wing-coverts bronzy-greenish, edged with black; chest 

 and fore-neck paler than the other parts of the body, of a dark 

 sepia brown ; tail of fourteen feathers. 



FIG. 2. Head of Phalacrocorax capensis. x f 



Iris green ; bill slaty-black ; naked skin of the throat and round 

 the eye yellow ; legs black. 



Length about 25'0 ; wing 10*75 ; tail 4*5 ; culmen 2-5 ; tarsus 2*0. 



Young birds are paler throughout, the foreneck and chest being 

 very pale brown. The iris is greyish at first but gradually becomes 

 green. 



Distribution. The Trek Duiker is found all along the coasts of 

 Southern Africa as far north as the Congo on the west, but not 

 beyond Durban on the east so far as we at present know. It is 

 most abundant on the western coast from Table Bay to Walvisch 

 Bay, and is found nesting on the following islands commencing in 

 the north. From all these islands guano is collected after the birds 

 have finished breeding. Mercury Isle (25 49' S. lat.), Ichaboe and 

 Possession (only a few), Pomoma and Sinclair on the coast of 



