150 
THE NATURALIST’S GUIDE. 
SULID^, — 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. 
GRACULIDiE, — 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. — STaia Gull, Said 
to be rare on the coast ; perhaps doubtful. 
261. Stercorarius pomarinus, Temm. — Pomarine 
Skua or Jdger, Not uncommon along the coast in autumn 
and winter. 
262. Stercorarius parasiticus, Arctic Jdger. 
Rare in winter off the coast. 
263. Stercorarius BufFonii, Coues. — Long-tailed 
Jdger, “ 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, Icq 
Gull.” Rare in winter. 
266. Larus leucopterus, Faber. — White-winged Gull, 
Not common in winter. 
