522 Mr. W. L. Scdater on a 



There is only one other species of Duyker found in South 

 Africa; this is the European Cormorant (P. carbo), which 

 can be at once distinguished by its crest and by the white 

 patch on its thighs. This bird is apparently rather rare 

 here, but there is a stuffed specimen in the South African 

 Museum which was obtained in the Caledon district. 



The White-breasted Duyker (P. lucidus) is not very 

 numerous on the island ; it was breeding at the time of my 

 visit, but unfortunately, owing to want of time, I was unable 

 to vii-it the nests. It is readily known by its much larger 

 size and by its white underparts. The Bank Duyker [F. 

 negJectus) is smaller and of about the same size as the Trek 

 Duyker (P. capensis), from which it can be distinguished by 

 the absence of the naked yellow skin beneath the eye and 

 round the base of the mandible, which is so characteristic of 

 the Trek Duyker. Furthermore, whereas the iris of the 

 Common Duyker is entirely green, that of the Bank Duyker 

 is yellow in its upper moiety and green beneath. 



I found the Bank Duyker breeding towards the north end 

 of the island. Its nest was constructed of seaweed, and in 

 it were three eggs of the usual chalky-blue colour, measur- 

 ing about 2'25 x 1*50 inches. The birds were so bold and 

 fearless that it was possible to walk right up to the nest and 

 pull them off it. 



The Reed Duyker (P. africanus) is a smaller bird with a 

 much longer tail. Of this species I found a number of nests 

 all close together, almost interlaced in fact, covering a 

 low rock not far from the other Duykers. Tliese birds, 

 however, were not so tame as the Bank Duyker; they flew off 

 when we got within six or seven yards of them. The nest in 

 this case was built entirely of sticks, and the eggs closely 

 resembled those of the other species, except that they were 

 smaller, measuring 1*75 X 1*25 inch. 



Finally the fourth and last Cormorant found here is the 

 Trek Duyker (P. capensis]. This bird is of about the same 

 size as P. neglectus, but can be at once distinguished by the 

 yellow skin at the base of the beak. It is far the commonest 

 of all the Duykers in the western part of the colony, and 



