FAM. L. DUCKS, GEESE, AND SWANS 



289 



black and Avliite 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, graj'ish-backed, 

 white-bellied duck with white si)eculuni on wings. This duck 



Ring-necked Duck 



receives its name "Whistler" from the unusually loud sound 

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



Length, 19 ; wing, 8f (8-91) ; tail, 



tarsus, 1 J ; culmen, l|-2 



North America ; breeding from Maine northward, and winterino 

 out most of the United States to Cuba and Mexico. 



through- 



17. Barrow's Golden-eye (152. Clangida 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 

 apgar's birds. — 19 



