608 ECONOMIC RELATIONS OF OUR BIRDS. 
276. Mergus cuctJLLATus, Linn. HOODED MERGANSER. Group II. Class c. 
This handsome species is an abundant migrant. We met with small flocks of 
them upon the small lakes in Northeastern Wisconsin during the month of 
October, 1877. 
Food: One specimen shot at Boulder Lake had in its stomach small seeds, 
shells and vegetable matter. 
Fresh-water insects and their larvae. It is an expert fisherman (Samuels). 
Snails, tadpoles and insects (Audubon). 
Family PELECANID.2E : Pelicans. 
277. Pelecanus trachyrhynchus, Lath. AMERICAN WHITE PELICAN. 
Group II. Class c. 
This large scoop-net fisherman was formerly a common migrant throughout 
the state, but at present moves north along the Mississippi and further west. 
There is a specimen in the cabinet of the River Falls State Normal School, which 
was obtained near St. Paul. 
Food: A specimen shot on Cayuga Lake, N. Y., in the spring of 1864, had in 
its stomach two sunfish f Pomotis vulgarisJ, one, six, and the other eight inches 
long, and two bullheads (W. J. Beal, Am. Nat.). 
Family GRACULIDAl: Cormorants. 
278. Phalacrocorax dilophus (Sw.), Nutt. DOUBLE CRESTED COR¬ 
MORANT. Group II. Class c. 
A regular migrant, but not very common. 
Food: Shrimps and various kinds of fish (Audubon). 
Family LARIDiE: G-ulls, etc. 
279. Larus glaucus, BrTnn. GLAUCUS GULL. Group II. Class c. 
Mr. Nelson speaks of this species as a rare winter visitant to Lake Michigan, 
and states that Dr. Hoy has killed three specimens upon the lake near Racine. 
280. Larus argentatus Smithsonianus, CoUes. S3IITHSONIAN HERRING 
GULL. Group II. Class c. 
A migrant and winter resident on Lake Michigan. Dr. Hoy records it as com¬ 
mon on the lakes. Mr. Nelson states that a colony breed on an island between 
Green Bay and Lake Michigan. 
Food: It consists principally of herrings, of which they destroy great numbers; 
also other fish, shrimps, crabs, shellfish, as well as young birds and small quad¬ 
rupeds. They suck all the eggs they can find. The young are fed chiefly upon 
shrimps and small Crustacea (Audubon). 
