MIGRANTS AND WINTER RESIDENTS, 175 



with wavy black bars. Female, brown where male is black; 

 region around bill white. Length i l / 2 feet. Winter resi- 

 dent. Rather common. 



Ring-necked Duck: Ay thy a collaris. 



Similar to Scaup, but has a chestnut band around the 

 neck. Female like female Redhead, but smaller and browner. 

 Length i l / 2 feet. Winter resident. Not rare. 



American Golden-eye; Whistler: Clangula clangula 



americana. 



Head green, an oval white patch in front of the eye; 

 iris golden-yellow; neck, under parts and large area on wings 

 white; rest of plumage black. Female, head cinnamon- 

 brown, and less white. Length 20 inches. October to April. 

 Not rare. 



Ruffle-head; Butter-ball: Cliaritonetta albeola. 



A broad white band across the back of the head; rest of 

 head and neck beautiful iridescent green and blue; back 

 black; remainder of plumage mostly white. Female, throat 

 and upper parts dark brown; a white patch on sides of 

 the head. Length 15 inches. September to April. Com- 

 mon. 



Ruddy Duck; Rook: Erismatura jamaicensis. 



Crown black, cheeks and chin white; neck, back and sides 

 of the body chestnut-red; under parts silvery- white, some- 

 times mottled; stiff, pointed tail-feathers. Female, upper parts 

 dark grayish-brown and buffy; sides of head and throat 

 whitish. Length 15 inches. September to April. Common. 



Canada Goose; Wild Goose: Branta canadensis. 



" Winter visitant, arriving in the fall on the ap- 

 proach of cold weather. Few probably settle on the 

 waters within the District, but it is no uncommon 

 sight to see files of geese flying over, and they are 



