PHALACROCORACID^ PHALACKOCORAX O 



Nolloth (S. A. Mus.), Lambert's Bay, Berg Eiver Mouth and Hoetjes 

 Bay (Stark), Dassen Island, Table Bay (S. A. Mus.), Knysna (Stark), 

 Port Elizabeth (Brown), Port St. Jobns (Shortridge) ; Natal- 

 Eight miles off mouth of Ifafa River (Woodward) ; Orange River 

 Colony Kroonstad (Barratt), Vredefort Rd. (B. Hamilton), Beth- 

 lehem, breeding in May (Sparrow) ; Rhodesia Umfuli and other 

 Mashonaland Rivers (Marshall). 



Habits. Though not nearly so common as the next species 

 (P. capensis], the White-breasted Duiker cannot be called a scarce 

 bird. It is generally seen singly or in pairs flying along with the 

 characteristic flapping flight of all the Cormorants, or sitting on 

 a rock on the edge of the sea drying and sunning itself. 



It breeds on most of the islands round the coast of the Colony, 

 noticeably so on Dassen Isle and Marcus Isle at the entrance of 

 Saldanha Bay, also at Dyers Isle off the coast of Bredasdorp, and on 

 a rock just outside the Knysna Heads. The breeding season seems 

 by no means uniform, as the birds were nesting on Dassen Island 

 when I visited it in July, while Stark (according to his note-book) 

 found young birds as well as eggs on the rock off Knysna in 

 February. 



The eggs are like those of other Cormorants, differing only in 

 size ; they are pale blue in colour and covered with a coat of white 

 chalky matter, which sometimes wears off partially or entirely. 

 Eggs in the South African Museum are nearly regular ovals, 

 measuring 2'50 x 1*60. 



Major Sparrow found a pair of this Duiker nesting in a willow- 

 tree on the shore of the lake at Bethlehem, in the Orange River 

 Colony, on May 16th. The clutch consisted of four eggs. 



o 

 565. Phalacrocorax capensis. Trek Duiker. 



Pelicanus capensis, Sparrm. Mus. Carls, iii, pi. 61 (1788). 



Graculus capensis, Grill, K. Vet. Akad. Handl. Stockli. ii, no. 10, p. 56 



(1858) [Knysna] 5 Layard, B. S. Afr. p. 380 (1867) ; Gurney in 



Anderssorfs B. Damaral. p. 368 (1872) ; Hotub <& Pelzeln, Orn. Sud- 



Afr. p. 342 (1882) ; Butler, Feilden & Reid, Zool. 1882, p. 429. 

 Phalacrocorax capensis, Gurney, Ibis, 1864, p. 355 [Durban] ; Sharpe, 



ed. Layard' s B. S. Afr. p. 780 (1884) ; Swinburne, P. R. Phys. Soc. 



Edin. ix. p. 201 (1886) ; Fleck, Journ. Ornith. 1894, p. 379 ; W. L. 



Sclater, Ibis, 1896, pp. 521, 522, 1904, p. 82 ; Shelley, B. Afr. i, p. 



160 (1896) ; Grant, Cat. B. M. xxvi, p. 352 (1898) ; Woodward Bros. 



Natal B. p. 203 (1899); Reichenow, Vog. Afr. i, p. 92 (1900); 



