BOSS'S GULL. 665 



I have seen, and which were procured in the neighbourhood 

 of Bridlington about the year 1890. 



Bridlington, two adult and one immature, September 

 and October 1903 ; the latter and one of the adult specimens 

 are in the collection of the Rev. J. G. Tuck of Tostock Rectory, 

 Bury St. Edmunds (Zool. 1903, pp. 353, 394, 436). 



Scarborough, an adult female, in winter plumage, 5th 

 September 1903 (W. J. Clarke MS., and torn. cit. p. 394). 

 This specimen is in the York Museum. 



Filey, one adult, 2ist September 1903 ; purchased by Mr. 

 Williams of Dublin (torn. cit. p. 394). 



Flamborough, two immature, one of which I examined 

 on 25th September 1904. 



Same place, one in the autumn of 1905. 



The figure of the immature example in Lord Lilford's 

 work on " British Birds " was taken from a specimen shot 

 at Bridlington in September 1900. 



ROSS'S GULL. 

 Rhodostethia rosea (Macgillivray). 



Accidental visitant from the Arctic regions, of extremely rare 

 occurrence. 



This circumpolar species, also called the Cuneate or Wedge- 

 tailed, and the Rosy Gull, is an inhabitant of the far north, 

 where Nansen observed it, during his famous voyage, in the 

 neighbourhood of Hirtenland Islands, on which it was prob- 

 ably breeding. 



The only example known to have occurred in the British 

 Islands was shot near Tadcaster, purchased by Sir Wm. 

 Milner of Nun Appleton, and recorded by him as " killed 

 on 22nd December 1846, by Mr. Thomas Robinson of Saxton, 

 near Aberford, in this county, and discovered by Mr. Graham, 

 bird-preserver, York, who brought it to me " (Zool. 1847, 



