FAM. L. DUCKS, GEESE, AND SWANS 



289 



black and white duck. The back, tail, and primaries are black ; 

 a spot at base of bill, neck, under parts, and much of the wings 

 white. The white spot on the head is rounded and about a 

 half inch high. The female is a brown-headed, grayish-backed, 

 white-bellied duck with white speculum on wings. This duck 



Eing-neoked Duck 



receives its name "Whistler" from the unusually loud sound 

 produced by its wings when flying. (Whistler ; Garrot.) 



Length, 19 ; wing, 8f (8-9^) ; tail, 3i ; tarsus, IJ ; culinen, l|-2. 

 North America ; breeding from Maine northward, and wintering through- 

 out most of the United States to Cuba and Mexico. 



17. Barrow's Golden-eye (152. Clangula isldndica). — A 

 duck similar to the last, but the head and throat are a dark, 

 glossy, purplish-blue instead of green, and the white spot at 



apgae's birds. 



-19 



