56 BIRDS OF SOUTH DAKOTA 



belly light; back barred with gray and white. Female like No. 



147, but feathers at base of bill white. 



149. Lesser Scaup Duck (Marila affinis.) 



The plumage of both male and female is similar to No. 



148, but the bird is smaller. It rarely nests in South Dakota but 

 is common in migration. Both of the Scaups are lovers of deep 

 water and common in the Great Lakes region. 



•150. Ring-necked Duck (Marila collaris.) 



This Duck is smaller than No. 149. Head black; chin 

 white; brown neck ring, whence its name; back and tail black; 

 under parts light. Female similar but more rusty on breast and 

 back. A rare breeder in the northeastern part of the State. 



151. Golden-eye (Clangula clangula americana.) 



About the size of the Redhead and common in the State 

 some seasons as a migrant. 



Male: green head slightly crested with a round white 

 patch on cheek ; breast and belly white. Female : head brown ; 

 throat white: breast and back gray. Their summer home is 

 well within the Arctic regions. 



153. BuFFLE-HEAD (Charitonetta albeola.) 



A rather small Duck. Green head slightly crested; white 

 patch extending back from eyes ; neck, breast and belly white or 

 grayish ; back black. Female : brown head and neck with white 

 on sides of head; throat and breast grayish brown. Probably 

 seen only in migration. 



154. Old-squaw (Harelda hy emails.) 



Very rare; seen only in migration. There are only two 

 specimens in the University Museum. 



Central tail feathers of both sexes very long and black. 

 Male in summer: black, with some rusty on back; white patch 

 around eye. In winter: head white, with black patch on sides 

 of neck; breast white; black crescent over shoulders. Female 

 in summer: head and upper parts mostly dusky, with whitish 

 patch back of eye. In winter: cheeks, neck and under parts 

 white; breast dusky. Breeds in the Arctic regions. 



