COUES, BIKDS OF NEW ENGLAND. 309 



ring in winter. In the plumage of that season it consti- 

 tutes Auclubon's Sterna "Havellii" Mr. Lawrence has 

 specimens from Long Island. It is decidedly a northern 

 species, probably not breeding within our limits. 



HydrocJtelidon fissipes Gray. Short-tailed Tern. Rare 

 and perhaps occasional, chiefly in the latter part of sum- 

 mer, and early in autumn. 



Haliplana fidiginosa Wagl. Sooty Tern. A rare and 

 perhaps only accidental summer visitant as far north as 

 Massachusetts. "Breeds on Muskegat Island." (E. A. 

 Samuels, AIL, p. 90. Omitted from Sam., O. 0.) 



Rhynchops nigra Linn. Black Skimmer. Entirely ac- 

 cidental, if really occurring. (Mass., Emm., p. (> ; 

 Linsl., p. 271; Putn., p. 231; not recognized by other 

 local authorities.) 



COLYMBIDJE. 



Colymbus torquatus Briinn. Loon. Common ; resi- 

 dent. "Occasionally breeds." (Mass., Sam., p. 14; 

 AIL, p. 80.) Regularly breeds in more northern por- 

 tions. In southern portions is chiefly found cHring the 

 winter. 



No. 1097, adult. Essex Co. S. Jillson, May, 1864. 

 No. 1098, young. " " " " 1853. 



Colymbus arcticus Linn. Black-throated Loon. Very 

 rare winter resident. Not known- to breed. (Omitted 

 from Sam., 0. O.) 



Colymbus septentrionalis Linn. Red- throated Loon. 

 Rare winter visitant. 



No. 80, adult, Sukkertoppen, Greenland, July 30, 1860. Williams 

 College Lyceum of Natural History, 18G4. 



No. 1190, j-oung. Salem, Essex Co. A. F. Bosson, 1863. 



No. 1191, $. " " " Sairil. Carlen, Nov., 1866. 



No. 189, $. " " " J. H. Emerton, Nov. 7, 1866. 



Colymbus ? Unidentifiable. 



No. 77, nestling. Sukkertoppen, Greenland, July 31, 1860. Wil- 

 liams College Lyceum of Natural History, 1864. 



PODICIPIM;. 



Podiceps Holbollii* Reinhardt. (P. rubricollis or gri- 



* See my Eeview of the Loons and Grebes of North America, in the 

 Proc. A. N. S., Phila., 1862, p. 226. 



