153 



PoEZANA CAEOLINA, Vieill. Common Rail. Summer visi- 

 tant. Not common. 



Beenicla canadensis, Boie. Wild Goose. Spring and 

 fall. Common. 



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



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



A. OBSCUEA, 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. 



QuEEQUEDULA DiscoES, Stcpli. Bluc-ivinged 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. COLLAEIS, Baird. Ring-7iecked Duck. Spring and fall. 



Not common. 

 Aythya ameeicana, Bon. Red-headed Duck. Spring and 



fall. Bare. 



BucEPHALA AMEEICANA, Baird. Goldeii Eije, " Whistler.^* 

 Spring and fall. Common. Sometimes seen in midwinter. 



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



Haeelda glacialis, Leach. Old Squaw. Spring and fall. 

 Not common. 



Pelionetta peespicillata, Kaup. Surf Duck. Spring 

 fall. Eare. 



Meegus ameeicanus, Cass. Sheldrake. Spring and fall. 

 Common. 



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

 fall. Not common. 



Laeus aegentatus,* Brunn. Herring- Gull. Accidental. 

 Often seen about our rivers and lakes in summer. 



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

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

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



ESSEX INST. PEOCEED. VOL. lii. 20. 



