SEA DUCKS. 113 



Washington, not rare, W. V. Long Island, A. V. Sing Sing, A. V., Apl. 

 Cambridge, casual ; one instance, Nov. 



Nest, on the ground, in grassy sloughs or marshy lake sides. Eggs, six to 

 twelve, similar in color to those of the two preceding species, 2*28 x 1-63. 



This is more of a fresh-water bird than either of the preceding. It 

 is not common in the Atlantic States north of Florida, where daring 

 the winter it is abundant on fresh- water lakes. 



151. Glaucionetta clangula americana (Bonap.). AMERICAN 

 GOLDEN-EYE; WHISTLER. Ad. $. Head and throat dark, glossy green, a 

 circular white patch at the base of the bill measuring, along the bill, less 

 than half an inch in height; neck all around, breast, belly, exposed part of 

 wing-coverts, speculum, and most of the scapulars white ; rest of plumage 

 black. Ad. 9 . Head and throat cinnamon-brown, fore neck white ; upper 

 breast, back, and sides ashy gray bordered with grayish ; wing-coverts tipped 

 with white ; speculum, lower breast, and belly white. L., 20-00 ; W., 9'00 ; B. 

 from anterior margin of white patch to anterior margin of nostril, TOO; from 

 anterior margin of nostril to tip, '75. 



Range. North America, breeding from Manitoba and Maine northward, 

 and wintering from the southern limit of its breeding range to Cuba. 



Washington, not rare, W. V. Long Island, common T. V. and W. V., 

 Nov. 15 to Apl. 15. Sing Sing, common T. V. and W. V., Nov. to May. 

 Cambridge, rather common, Oct. and Nov. 



Nest, in a stump or hollow tree. Eggs, six to ten, pale bluish, 2'35 x 1'75. 



The rapidly moving wings of most Ducks make a whistling sound, 

 but this species excels in wing music. As a diver it can also claim 

 high rank. 



152. Glaucionetta islandica (Gmel.\ BARROW'S GOLDEN-EYE. 

 Ad. $ .Head and throat dark, glossy, purplish blue, an irregular, somewhat 

 spread-wing-sha,pQd white patch at the base of the bill measuring, along the 

 bill, about one inch in height ; neck all around, breast, belly, speculum, lesser 

 wing-coverts, ends of greater ones, and the shaft part of the scapulars white; 

 rest of the plumage black. Ad. 9 . Kesernbles the 9 of the preceding species 

 in color; there is some difference in the size and proportions of the bill, but 

 the two birds can not always be distinguished with certainty. W., 9-25 ; B. 

 from anterior margin of white patch to anterior margin of nostril, -80 ; from 

 anterior margin of nostril to tip, -66. 



Remarks. The males of this and the preceding species may always be 

 distinguished by the difference in the color of the head and size and shape of 

 the white spot at the base of the bill. 



Range. Breeds in the far north Greenland, Iceland, and Alaska and 

 southward in the Rocky Mountains ; winters as far south as Illinois and Vir- 

 ginia. 



Washington, A. V.. one record. Long Island, A. V. 



Nest, in a stump or hollow tree. Eggs, six to ten, pale bluish, 2-40 x 1-70. 



