1 6 CHECK-LIST OF NORTH AMERICAN BIRDS. 



[6672, 552, R6 5 8, C 782.] 



GEOG. DIST. Arctic regions, south in eastern North America 

 in winter to the Great Lakes and the Middle States. 



40 #. Rissa tridactyla pollicaris RIDGW. 



Pacific Kittiwake. 



Rissa tridactyla pollicaris " STEJN. MS." RIDGW. Water B. N. 

 Am. II. 1884, 202. 



[B , C 552^, R 6580, C 783.] 



GEOG. DIST. Coasts of North Pacific and Bering Sea, south in 

 winter casually to southern California. 



41. Rissa brevirostris (BRUCH). 

 Red-legged Kittiwake. 



Larus brevirostris BRUCH, J. f. O. 1853, 103. 



Rissa brevirostris LAWR. in BAIRD'S B. N. Am. 1858, 855. 



[B 674, 675, C 553, R 659, C 784.] 

 GEOG. DIST. Coasts and islands of Bering Sea. 



GENUS LARUS LINNAEUS. 



Larus LINN. S. N. ed. 10, I. 1758, 136. Type, by elimination, 

 L. canus LINN. 



42. Larus glaucus BRUNN. 



Glaucous Gull. 



Larus glaucus BRUNN. Orn. Bor. 1764, 44. 



[B 656, C 543, R 660, C 768.] 



GEOG. DIST. Arctic regions, south in winter in North America to 

 the Great Lakes and Long Island. 



42.1. Larus barrovianus RIDGW. 



Point Barrow Gull. 



Larus barrovianus RIDGW. Auk, III. July, 1886, 330. 



