BIRDS OP EAST PENNSYLVANIA. 85 



Blue -winged Goose. . Anser coemlescens. This species, 

 supposed by many authors to be 

 the young of the preceding, Anser 

 hyperboreus, with which it is gene- 

 rally found in company, is also 

 rare, but in some seasons is not 

 uncommon on the Delaware and 

 Atlantic coast. (S. & A.) 



Wliite-fronted Goose. . Anser alUfrons. Laughing Goose. 

 Eare. Its migrations are more 

 towards the interior States. (W.) 



Canada Goose. . . . Bemicla Canadensis. Wild Goose. 

 Not uncommon from the end of 

 September to the beginning of 

 April. (W.) 



Brent Goose Bemicla hrenta. Brant. Abundant, 



appearing early in October, and 

 again in the middle of May. 

 (S. & A.) 



Mallard Anas boschas. Wild Duck. Green 



Head. Common, but much more 

 frequent in Winter than at other 



Black Duck Anas obscura. DusKY Duck. 



Abundant. There is a partial 

 migration to the north in Spring, 

 the flocks returning in October. 



Pin-tail Duck. . . . Anas acuta. Sprig-tail. Plentiful. 

 This species leaves in the middle of 

 March for the north. (W.) 



Green-winged Teal. . Nettion CaroUnensis. Abundant, 

 appearing in April, and again about 

 the end of October. (S. & A.) 



Blue-winged Teal. . . Querquedula discors. Common. 



Arrives middle of April, and again 

 in September. (S. & A.) 



Shoveller Spatula dypeata. Spoonbill. Eather 



rare. It leaves for the north about 

 the middle of April. (W.) 



