Glaucous-winged Gull 



Larus glaucescens 



QLL 14B; Jan. 26, 1991; Poison 

 n=2 



t 



Great Black-backed Gull 



Larus marinus 



QLL 10D; Feb. 21, 1987; Missouri 



River below Ft. Peck power plant 

 n=2 



t 



Black-l^ged Kittiwake 



Rissa tridactyla 



QLL 28A; Nov. 23, 1990; 



Canyon Ferry Dam 

 n=4 



W-- 



W-- 



t - - - 

 t 



Sabine's Gull 



Xema sabini 



QLL ID; Sept. 17, 



Libby Dam 

 n=10 



1985; 



_t_ 



t - - t 



t t - 



t - t 



48 



