JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 61 



Axillars, white, with shafts dark near the tips; speculum, green 

 and black; white patch on shoulder; top of head, white, more or less 

 green behind the eye (male). 



Mareca americana. 

 American Widgeon. Baldpate. 

 See No. 44. 



Axillars, white, with shafts dark near the tips; no white shoulder 

 patch; head, speckled (female). 



Mareca americana. 

 American Widgeon. Baldpate. 



See No. 44. 



Axillars, thickly speckled and faintly barred with gray; head, 

 speckled (female ) ; head and upper neck, brown ; top of head, white 

 or whitish. 



Mareca penelope. 

 European Widgeon. 

 See No. 43. 



Axillars, grayish white ; head, brown, not speckled ; stripe of white 

 on sides of neck; tail, pointed; middle feathers, long (male). 



Dafila acuta. 

 Pintail Duck. 



See No. 49. 



SECTION 2. Hind toe, without membraneous lobe or flap; belly, 



not white. 



Speculum, bluish purple, edged with white ; 

 head, green; a white ring around neck; 

 breast, chestnut; belly, grayish white; feet, 

 orange red; axillars, white (male). 



Anas platyrhynchos . 

 Mallard Duck. 



See No. 40. Anas platyrhynchos. 



Belly, white, showing more or less brown spots; axillars, white; 

 bill, less than .90 wide at widest part; speculum, black and white 

 (female). Chaulelasmus streperus. 



Gadwall. 

 See No. 42. 



