POMATOKHINE SKUA 457 



Allied Species and Representative Forms. M. chilensis, 

 with bright chestnut under-parts and axillaries, inhabits 

 both sides of South America, from lat. 12 S. to the Straits 

 of Magellan. 



M. antarctica, a stouter form, sooty-brown in colour, is 

 found in the Falkland Isles and Southern Ocean. 



M. maccormicki, a very pale representative, inhabits 

 Victoria Land, from lat. 71 to 76 S. and long. 171 to 

 178 E. (Saunders). 



POMATORHINE SKUA. Stercorarius pomatorhinus 

 (Temminck). 



Coloured Figures. Gould, ' Birds of Great Britain/ vol. v, pi. 

 79 ; Dresser, ' Birds of Europe,' vol. viii, pi. 610 ; Lilford, 

 ' Coloured Figures,' vol. vi, pis. 32, 33 ; Booth, ' Eough 

 Notes,' vol. iii, pis. 40-42. 



The Pomatorhine Skua is in all likelihood a regular 

 annual visitor during autumn and winter to British waters, 

 but much rarer on its passage northward in spring. It 

 usually appears in limited numbers, though during certain 

 seasons quite remarkable migrations have taken place. It 

 is more often met with on the eastern sea-board of Great 

 Britain than on the opposite side. On the Norfolk coast ] it 

 appears to be the most plentiful species of Skua, occurring 

 chiefly after heavy gales. Stevenson mentions a game- 

 keeper who had thirty in his possession at one time, and 

 probably nearly all Pomatorhines. Large numbers were 

 recorded in 1874, 1879, 1880, and 1881. Furthermore, Mr. 

 Caton Haigh records them for successive years from the 

 coast of Lincolnshire (' Zoologist,' 1902 and 1903). 



This Skua has appeared on the Solway Firth as late as 

 December 22nd (Macpherson), and Messrs. Harvie-Brown 

 and Buckley, in their ' Fauna of Sutherland and Caithness,' 

 p. 235, state that it " frequents the oceans and seas 

 of the Outer Hebrides in some numbers every summer 

 of late years." Moreover, a specimen is " recorded by 



1 On the Suffolk coast, however, according to Kev. Julian Tuck, this 

 Skua is rather rare, there being only two records (December 3rd and 19th, 

 1903) of its occurrence for " the last ten years " (' Zoologist,' 1904, pp. 

 33, 34). 



