1875.] 449 [Brewer. 



299. Larus marinus Linn. Coast in winter. 



300. Larus Smithsonianus Coues. Summer resident (Me.); 

 coast in winter. 



301. Larus delawarensis Ord. Coast in winter. 



302. Rissa tridactyla Bon. Coast in winter. 



303. Chroicocephalus atricilla Lawrence. Summer res- 

 ident. 



304. Chroicocephalus Philadelphia Lawrence. Summer 

 resident, Me. Migratory. 



305. Stercorarius pomarinus Temn. Off the coast in 

 winter. 



306. Stercorarius parasiticus Gray. Off the coast in 

 winter. 



307. Stercorarius Buffbni Baird. Coast of Maine, winter. 

 * 308. Xema Sabini Leach. This species is new to our fauna, 



and is entitled to a place on the strength of a single specimen in im- 

 mature plumage taken in Boston Harbor, Sept. 27th, 1864, by Mr. 

 H. W. Diamond. It is now in the collection of Mr. Wm. Brewster, 

 Cambridge. 



309. Gelochelidon aranea Wilson. Although mentioned as 

 of occasional occurrence by Emmons, Putnam, Samuels and Allen, I 

 can find no special confirmation of its actual presence except a single 

 specimen recently taken at Ipswich by Mr. Maynard and now in 

 Mr. Brewster's possession. 



*310. Thalasseus acuflavidus Cabot. Dr. Coues names this 

 bird as of undoubted occurrence on our coast. At the time of the 

 publication of his list, there was, so far as I can find, no data for that 

 belief. It had not even then been traced so far north as Long Island, 

 or New York, and only a single specimen had been traced so far 

 north as Grassy Bay, in Southern New Jersey. The capture of two 

 specimens by Mr. Vickary at Chatham, Cape Cod, has now given it, 

 I believe for the first time, a right to take its place among the rare 

 and accidental birds that visit our coast. 



*311. Thalasseus caspius. Occasional, Mass., Brewster; 

 (Me. ?) 



*312. Thalasseus regius. Rare summer visitant, Brewster 

 and Maynard, Mass., 1874. 



313. Sterna Forsteri Nuttall. Occasional in fall (Mass.). 



314. Sterna hirundo Linn. Summer resident. 



315. Sterna macroura Naum. Summer resident. 



PROCEEDINGS B. S. N. H. — VOL. XVII. 29 JULY, 1875. 



