AMERICAN SCAUP DUCK 
148. Marila marila. 18 in. 
Head black, glossed with greenish; speculum white; 
bill dull bluish; eye yellow. Female resembles that of 
the Redhead, but has a white speculum. These ducks 
are perhaps better known as Blue-bills, than as Seaup 
Ducks. They are one of the most abundant migrants 
on the Atlantic coast, and are one of the most active of 
the family, diving at the flash of a gun. 
Notes.—A peculiar grunting quack. 
Nest.—Of grass and feathers on the ground in 
marshes. 
Range.—Breeds from Minnesota and Dakota _ north- 
ward. Winters south of New England. 
LESSER SCAUP DUCK 
149. Marila affinis. 17 in. 
Slightly smaller than the last, and with the head of 
the male glossed purple instead of green. 
Range.—Breeding range same as that of the last; 
winters in the scuthern half of the U. 8. 
