Merbiam on Birds of the Adirondack RcgioTt. 235 



161. Clangula albeola (Linn.) Stephens. Butterball.— Occurs, 

 but not so common as the above. 



162. Harelda glacialis (Linn.) Leach. Old Squaw. — Occurs dur- 

 ing migration. 



163 CEdemia americana, Swain, and Rich. Black Scoter. — Occurs 

 during the fall migration. 



164. Melanetta velvetina (Cassin) Baird. White-winged Scoter. 

 — Common during the fall migration. 



165. Pelionetta perspicillata (Linn.) Kaup. Surf Duck ; Skunk- 

 head. — Occurs with the preceding, but not so common. 



166. Noraonyx dominicus (Linn.) Ridgway. Black-masked Duck. 

 — An accidental straggler from the West Indies and South America. Dr. 

 Cabot found it on Lake Champlain (Proc. Bost. Soc. Nat. Hist., Vol. 

 VI, p. 375-) 



167. Mergus merganser americanus ( Cassin) Ridgway. Shel- 

 drake. Common summer resident, breeding on numerous lakes. Very 

 abundant in the fall. 



16S. Mergus serrator, L inn. Red-breasted Merganser. — Occurs 

 during the migrations. 



169. Lophodytes cucullatus (Linn.) Reich. Hooded Merganser. 

 — Tolerably common summer resident. 



170. Sula bassana( /,///«. ) Brisson. Gannet. — Accidental straggler 

 from the Gulf of St. Lawrence. 



171. Larus leucopterus. Faber. White-winged Gull. — A rare win- 

 ter visitor from the north. 



172. Larus argentatus smithsonianus, Cones. Herring Gull. — 

 Common resident, breeding plentifully at those lakes that are not too 

 exposed. 



173. Larus philadelphiee (Ord) Gray- Bonaparte's Gull. — Occurs 

 during the migrations. 



174. Podiceps holbcelli, Reinh. Red-necked Grebe. — Occurs dur- 

 ing the migrations — in spring about the last of April. 



175. Podilymbus podiceps (Linn.) Lawrence. Hell-diver. — 

 Common summer resident. 



176. Colymbus torquatus. Briinnich. Loon. — A common summer 

 resident. 



177. Colymbus septentrionalis, Linn. Red-throated Diver. — 

 Occurs during the migrations. Have seen it at Big Moose Lake in Octo- 

 ber. 



