PHALACROCORAXSULA 561 



smoother in surface of shell and smaller, measuring about 1*75 

 by 1-20. 



In India and Burma, south to Java and Borneo this species is 

 replaced by P. javanicus (Horsf.), which differs in having the 

 chin and neck black and not brown. 



SULA, Brisson, 1760. 



784. GANNET. 

 SULA BASSANA. 



Sula bassana (Linn.), Syst. Nat. i. p. 217 (1766) ; (Naum.), xi. p. 14, 

 Taf. 278 ; Hewitson, ii. p. 474, pi. cxxx. fig. 3 ; Gould, B. of E. v. 

 pi. 412 ; id. B. of Gt. Brit. v. pi. 54 ; Dresser, vi. p. 181, pi. 392 ; 

 Grant, Cat. B. Br. Mus. xxvi. p. 425 ; Rid g way, p. 76 ; Saunders, 

 p. 365 ; Lilford, vii. p. 9, pi. 3. 



Fvu, de Hassan, French ; Ganso-patola, Portug. ; Alcatrdz, 

 Span. ; Easstolpel, German ; Ian van Gent, Dutch ; Kuksuk, 

 Greenl. ; Hav-sule, Icel., Dan., and Norweg. ; Hafsula, Swed. 



< ad. (Bass Rock). Entire plumage pure white, the head and neck 

 tinged with warm isabelline ; quills and tail black, the latter cuneate ; 

 bill pale livid blue ; space round the eye blackish ; iris yellow ; legs 

 greenish ; webs brown. Culmen 4'8, wing 18'8, tail 8'3, tarsus 27 inch. 

 The immature bird has the upper parts dark sooty brown closely spotted 

 with white, the under parts whitish .closely marked with sooty brown ; 

 wings and tail blackish brown ; bill dark horn-brown. The nestling is at 

 first naked and blackish, then covered with dark down. 



Hob. Atlantic coasts of Greenland, Iceland, Great Britain, and 

 Scandinavia, in winter south to North-west Africa; on the 

 American coasts from the high north to the Gulf of Mexico. 



Is wholly marine, not to say oceanic, in habits, only visiting 

 certain islands for the purpose of breeding. In British waters 

 there are Lundy in the British Channel, Grasholm on the south- 

 west coast of Wales, the Bell Rock and Skelligs on south-west 

 coast of Ireland, Ailsa in the Firth of Clyde, St. Kilda, North 

 Barra on Sulisgeir, and the Stack on the north coast of Scotland, 

 and the Bass Rock in the Firth of Forth. There is no station 

 on the coasts of Norway, Orkney, or Shetland, and in the Faeroes 

 only on Myggenoes, on the Iceland coast the Westman Islands, 

 Eldey and Grimsey. Formerly abundant in Newfoundland 

 waters it has now but three stations there, of which the Great 

 Bird Rock is chief. Notwithstanding its great power of flight, 

 it is occasionally driven inland by storms. It feeds wholly on 

 fish, which it takes by plunging with closed wings from a height, 

 and never by diving from the surface as do the Cormorants. At 



