JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 



67 



Head, cinnamon brown; upper breast and back, ashy gray, not 

 barred; speculum, white (female); very similar to female Barrow's 

 Golden-eye, but slightly smaller. Much more common than the next 

 species. Clangula clangula americana. 



American Golden-eye. Whistler. 

 See No. 56. 



Head, cinnamon brown; upper breast and back, ashy gray, not 

 barred; speculum, white (female); very'similar to preceding species, 

 but slightly larger. Clangula islandica. 



Barrow's Golden-eye. 

 See No. 57. 



Head, rufous brown; crown, blackish; 

 breast, black; lower back, ashy white, finely 

 lined with black (male ) ; bill, very different 

 from that of Red-head. (See cut. ) 



Marila vallisneria. 



Canvas-back Duck. 



See No. 52. 



Head, neck, and upper breast, dull cinnamon brown, palest on 

 throat; lower back, dull brown, barred with fine, wavy, white lines 

 (female ) ; easily distinguished by shape of bill. (See cut.) 



Marila vallisneria. 

 Canvas-back Duck. 

 See No. 52. 



Head, reddish brown; crown, not blackish; 

 breast, black; lower back, grayish, finely lined 

 with black (male ) ; bill, very different from 

 that of Canvas-back. (See cut. ) 



Marila americana. 



Red-headed Duck. 



Marila americana. $66 No. 51. 



Marila vallisneria. 



SECTION 3. Hind toe, with well denned membraneous lobe or flap; 

 belly, not white; more or less white, or grayish white, on head. 



General plumage, black ; a patch of white 



on front of crown and nape; bill, large, marked 



with orange, red, black, and white; no white 



on wings (male ) . Oidemia perspicillata. 



Surf Scoter. Skunk-head Coot. 



See No. 65. 



