36 THE CHICAGO ACADEMY OF SCIENCES. 



Michigan from October to April, or until the lake is covered with 

 ice, when its food of fish cannot be obtained. 



Its range covers the whole of North America and it breeds 

 from the northern United States northward. 



Merganser serrator (Linnaeus) . Red-breasted Merganser. 



Mergus serrator Linnjeus, S. N., ed. 10, I, 1758, 129. 

 Merganser serrator Schaffee, Mus. Orn., 1789, 66. 

 Popular synonyms : Red-bbeasted Goosander ob Sheldbakb. 

 Gae-bux. 



A quite common winter resident on-Lake Michigan, sometimes 

 staying in our vicinity as late as the twentieth of May. Its name 

 Red-breasted is far from appropriate, for its breast is not at all 

 red in color. 



It breeds in the northern portion of North America, migrating 

 southward in winter through 'the United States. Mr. Robert 

 Ridgway states that it breeds in northern Illinois.* 



Genus LOPHODYTES Reichenbaeh, 1852. 



Lophod3rtes cucullatus (Linnaeus). Hooded Merganser. 



Mergus cucullatus Linn^tjs, S. N., ed. 10, I, 1758, 129. 



Lophodytes cucullatus Reichen^aoh, Syst. Av., 1852, p. IX. 



Popular synonyms : Hooded Sheldbake. Wood Sheldbake. Wood 

 Duck. Snowl. Moss-head. Saw-bill. Ceow Duck. Haiet- 

 head. Pond Sheldbake. Cock Robin Duck. Fan-ceest. Pick- 

 axe. Sheldbake. 



A rare summer resident, although common during its migra- 

 tions. It is at times a winter resident. It breeds abundantly 

 along the Kankakee River, a few miles south of our limits. A 

 female of this species flew into the lagoon in Lincoln Park the • 

 last of July, 1896, and remained in the company of the tame 

 ducks until December 7, 1896. 



The range of the Hooded Merganser includes the whole of 

 North America, and it breeds nearly throughout its range, nesting 

 in knot-holes and other cavities in the trees of dense forests 

 along streams. 



Genus ANAS Linnaeus, 1758. 



Anas boschas Linnaeus. Mallard. 



Anas boschas Linn.eus, S. N., ed. 10 I, 1758, 127. 



Popular synonyms : Gbeen-head. Geay Duck. Geat Mallabd. 



Rare as a resident though common during the periods of 

 migration. Occasionally during severe winters, the Mallards will 



*Birds of Illinois, Vol. II, p. 190. 



