153 



PORZANA CAROLINA, Vieill. Common Rail. Summer visi- 

 tant. Not common. 



BERNICLA CANADENSIS, Boie. Wild Goose. Spring and 

 fall. Common. 



B. BRENTA, Steph. Brant. Spring and Fall. Common. 



ANAS BOSCHAS, Linn. Mallard. Spring and fall. Rare. 



A. OBSCURA, Gm. Black Duck. Summer visitant. ^ Com- 

 mon. Breeds. Arrives the last of March or first of April. 

 The young are hatched during the latter part of June. 

 The eggs are often laid before the middle of May, 



QUERQUEDULA DiscoRS, Steph. Blue-winged Teal. Spring 

 and fall. Common. 



Aix SPONSA, Boie. Wood Duck. Summer visitant. Com- 

 mon. Breeds. 



FULIX AFFINIS, Baird. Black-headed Duck. Spring and 

 fall. Not common. 



F. COLLARIS, Baird. Ring-necked Duck. Spring and fall. 

 Not common. 



AYTHYA AMERICANA, Bon. Red-headed Duck. Spring and 

 fall. Rare. 



BUCEPHALA AMERICANA, Baird. Golden Eye, " Whistler." 

 Spring and fall. Common. Sometimes seen in midwinter. 



B. ALBEOLA, Baird. Buffel Head. Spring and fall. Common. 



HARELDA GLACIALIS, Leach. Old Squaw. Spring and falL 

 Not common. 



PELIONETTA PERSPICILLATA, Kaup. Surf Duck. Spring 

 fall. Rare. 



MERGUS AMERICANUS, Cass. Sheldrake. Spring and fall. 

 Common. 



M. SERRATOR, Linn. Red-breasted Sheldrake. Spring and 

 fall. Not common. 



LARUS ARGENTATUS,* Brunn. Herring- Gull. Accidental. 

 Often seen about our rivers and lakes in summer. 



* Since this vras written, the American Herring Gull has been separated from the 

 European, under the name of Larus Smith sonianus. by Mr. Elliott Coues. (See 

 Proc. Phil. Acad. Nat. Sc. 1862, p. 296.) 



ESSEX INST. PROCEED. VOL. iii. 20. 



