226 Bulletin No. 7. 



birds are seen by them in the winter, but that they occur along 

 the coast in autumn, and again in the spring. 



18. Bissa tridactyla. KITTIWAKE. Common in winter along 

 the coast. 



[19.] Larus glaucus. GLAUCOUS GULL. A rare straggler in 

 winter from the north. 



20. Larus leucopterus. ICELAND GULL. Rare winter visitor. 

 Recent records are Boston, Jan. 31, 1880 (Hangs, Bull. Nutt. Orn. 

 Club, VI, 1881, 124), and November, 1881 (Cory, ibid., VII, 1882, 

 60). 



21. Larus marinus. GREAT BLACK-BACKED GULL. Com- 

 mon winter visitant. 



[22.] 'Larus argentatus. HERRING GULL. Rare or casual. 

 I have examined several specimens taken along the coast of Essex 

 County. 



22#. Larus argentatus smithsonianus. AMERICAN HERRING 

 GULL. Abundant winter visitant; a few remain along the coast 

 in summer, where formerly they probably bred. 



23. Larus delawarensis. RING-BILLED GULL. Rather un- 

 common on the coast in spring and fall. (See Brewster, Bull. 

 Nutt. Orn. Club, VIII, 1883, 163.) 



*24. Larus atricilla. LAUGHING GULL. Formerly a not un- 

 common summer visitant ; now nearly extirpated from our coast. 



25. Larus Philadelphia. BONAPARTE'S GULL. Common 

 spring and fall visitant ; some remain in winter. 



[26.] Xema sabinii. SABINE'S GULL. Accidental. The only 

 Massachusetts record is Boston Harbor, Sept. 27, \$>*i^(Br ouster, 

 Am. Sportsman, V, 1875, 370); but it has been taken at Portland 

 and Calais, Maine (Allen, Bull. Nutt. Orn. Club, III, 1878, 195). 



[27.] Grelochelidon nilotica. GULL-BILLED TERN. Acci- 

 dental. The only Massachusetts record of this southern species 

 is Ipswich, Sept. 1871 (Brewster, Am. Nat., VI, 1872, 306). A 

 specimen, however, has been recorded as taken at Grand Menan, 

 during the latter part of August, 1879 (Deane, on authority of G. 

 A. Boardman, Bull. Nutt. Orn. Club, V, 1880, 63). 



