JAN.. 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 337 



Length, 16.50; wing, 8.25; bill, 1.30; side of bill, 1.80; tarsus, 

 1.25; tail, 3.75. 



This species is common on Lake Michigan during the migrations 

 and in winter. It occurs both in Illinois and Wisconsin and is 

 claimed to breed in the latter state. The Golden-eye Duck usually 

 builds its nest in a hollow tree. The eggs are 7 to 10, pale grayish 

 green or grayish blue in color, and measure about 2.30 x 1.70 inches. 



"Common migrant throughout the state and abundant on Lake 

 Michigan, where it is usually a winter resident." (Nelson, Birds of 

 N. E. Illinois, 1876, p. 141.) "Common migrant and winter resident 

 wherever there is open water. There are several breeding records for 

 northern Wisconsin and we have ourselves seen adult males at various 

 northern points during the summer, but found no actual evidence of 

 nesting." (Kumlien and Hollister, Birds of Wisconsin, 1903, p. 24.) 



57. Clangula islandica (GMEL.). 

 BARROW'S GOLDEN-EYE. 



Glaucionetta islandica (Gmel.), A. O. U. Check List, 1895, P- 54- 

 Distr.: Iceland, Greenland and northern North America, breeding 

 from the Gulf of St. Lawrence northward; south in winter to New 

 York, Utah, and California. 



Adult male: Head and neck, dark bluish purple; rest of Tinder 

 parts, white ; a crescent-shaped spot oi white on the cheeks at base of 

 bill; a band of white about two inches wide 

 passes round the neck and joins the white of the 

 sides and breast; rest of upper parts, black; wings, 

 black; and wing coverts, heavily marked with 

 white, and many of the secondaries, white; tail, 

 black. 



Wing, 9.20 (male), 8.70 (female); bill, 1.25, on 

 side, 2; tail, 4; tarsus, 1.50. 



Adult female: Resembles the female American Golden-eye, but 

 is somewhat larger; head, dark cinnamon-brown; lower throat and 

 under parts, white, tinged with gray on the upper breast and sides of 

 the body; back, gray, slightly mottled with brown, shading into brown 

 on the rump; wings, black; many of the secondaries, white, and the 

 greater and lesser wing coverts, tipped with grayish white ; bill shorter 

 and narrower at tip than in C. c. americana. 



Barrow's Golden-eye is a rare winter visitant to Lake Michigan. 

 Mr. Frank M. Woodruff procured two specimens on Lake Michigan 

 near the Daily News Sanitarium, Dec. n, 1896. (The Auk, 1897, 



