150 THE NATURALIST'S GUIDE. 



SULID^E, — The Gannets. 



256. Sula bassana, Ross. — Gannet, " Haglett." Com- 

 mon in winter off the coast. 



257. Sula fiber, Linn. — Booby. Given as rare in 

 Essex County, some years ago, by Mr. Putnam ; no record 

 of its capture recently. 



GRACULID^E, — The Cormorants. 



258. Graculus dilophus, Gray. — Double-crested Cor- 

 morant, " Shag." Not uncommon off the coast in winter. 



259. Graculus carbo, Gray. — Common Cormorant, 

 "Shag." Common off the coast in autumn and winter. 



LARIDiE, — The Gulls, Terns, etc. 



260. Buphagus Skua, Coues. — Skua Gull. Said 

 to be rare on the coast ; perhaps doubtful. 



261. Stercorarius pomarinus, Temm. — Pomarine 

 Skua or Jager. Not uncommon along the coast in autumn 

 and winter. 



262. Stercorarius parasiticus, Gray. — Arctic Jager. 

 Rare in winter off the coast. 



263. Stercorarius Buffonii, Coues. — Long-tailed 

 Jager, " Marlinspike." Not uncommon off the coast in 

 winter. 



264. Larus marinus, Linn. — Great Black-backed Gull, 

 "Saddle-back," "Coffin-carrier." Common during winter. 



265. Larus glaucus, Brunn. — Glaucous Gull, " Ice 

 Gull." Rare in winter. 



266. L arus leuc opterus, F aber. — White-wing ed^ Gull. 

 Not common in winter. 



