74 
along the creeks and lakes in Iowa. Found them 
some seasons very plenty on the marshes of the 
Delaware River. -Not rare. 
Fulix Alartla—SLaird. 
Greater Black-head. 
Abundant on the Susquehanna flats in No- 
vember and March. Found along the Delaware 
River and West to Minnesota. Breeds. I found 
one breeding in Iowa in 1874. Eggs eight. 
Shot the parent bird in Lime Creek. 
fultx Affinis —Baird. 
Little Black-head. 
Common on the Delaware and Susquehanna 
Rivers, Breeds in lowa and Minnesota. Eges 
nine. 
Fulix Collaris—Batrd. 
Ring-necked Duck. 
Not common; found in company with the 7 
cl ffints, and met with often on the Delaware 
River. 
Aythya clmericana.—Bonap. 
Red-head. 
Abundant on the Chesapeake in Winter, and 
as far South as North Carolina. I found it in 
Iowa and found it breeding in Minnesota, above 
Fergus Falls. Eggs eight. 
Aythya Vallisneria.—Bonap. 
Canvass-back. 
Common on the flats of the Susquehanna and 
as far South as Charleston, South Carolina, in 
