Gulls 



Great Black-backed Gull 



Lams marinus 



1991-95 = 1; 1992 - QLL 17B 



Black-legged Kittiwake 



Rissa tridactyla 



1991-95 = 0; 1990 - QLL 28A 

 n = 4 



Sabine's Gull 



Xema sabini 

 1991-95 = 2; 1995 

 n = 12 



- QLL 16B 



Ivory Gull 



Pagophila eburnea 



1991-95 = 0; 1974 - LL 10 

 n = 1 



t 



t - - - 

 t 



t - - - 



t 



t - - t - - - - - - 



t 



t t - 



t - t - - - - - 





53 



