20 CHECK-LIST OF NORTH AMERICAN BIRDS. 



55. Larus brachyrhyuchus Rich. 



Short-biUed GuU. 



Larus brachyrhyuchus Rich. F. B. A. II. 1 831, 421. 



[B 665, 673, C 549, R 670, C 780.] 



Geog. Dist. — Arctic America and Pacific coast, south in winter to 

 southern California. 



[56.] Larus canus Linn. 

 Mew GuU. 



Larus canus Linn. S. N. ed. lo, I. 1758, 136. 

 [B— , C— , R671, C779.] 

 Geog. Dist. — Europe and Asia ; accidental in Labrador ? 



57. Larus heermanni Cass. 



Heermann's GuU. 



Larus heermanni Cass. Pr. Ac. Nat. Sci. Phila. VI. 1852, 187. 



[B666, C 551, R672, C 781.] 



Geog. Dist. — Pacific coast of North America, from British 

 Columbia to Panama. 



58. Larus atriciUa Linn. 



Liaughing Gull. 



Larui atriciUa Linn. S. N. ed. 10, I. 1758, 136. 



[B 667, C 554, R 673, C 786.] 



Geog. Dist. — Atlantic and Gulf coasts of the United States, 

 north to Maine and Nova Scotia ; south in winter through West 

 Indies, Mexico (both coasts). Central America, and northern South 

 America (Atlantic side) to the Lower Amazon. 



59. Larus frankliuii Sw. & Rich. 



Franklin's Gull. 



Larus franklinii Sw. & Rich. F. B. A. II. 183 1, 424, pi. 71. 



