22 



KEY TO DUCKS, GEESK AND SWANS OF XOKTH AMERICA. 



Section 2. Bill not narrow ; hind toe without mem= 

 braneous lobe or flap ; belly, white. 



Head, green, purple, black iiad white; chin and 

 upper throat, white ; feet, j'ellow in life. 



Wood Duck. 

 Summer Duck. 



Aix sponsa (male) . 

 See page 52. 



Head, grayish brown with white stripe through 

 the eye; cliia and upper throat, white; feet, 3'el- 

 low iu life. 



Wood Duck. 

 Summer Duck. 

 Aix sponsa {fi'mnle). 

 See page 52. 

 Aix spunsa. 

 Head, brown ; ehin, not white; a white stripe on sides of the neck; tail, pointed. 



Pintail Duck. 

 Daflla acuta (malf) . 

 See page 51. 



Section 3. Hind toe without membraneous lobe or flap; 



belly, not white. 



Bill, more than one inch wide near tip; Head, 

 green or greenish ; speculum, metallic 

 green; axillars, white; feet, orange red in 

 life. 



Shoveller Duck. 

 Broad-bill. 

 Spatula clypeata {male 

 See page 50. 



8i>atul:i cljiicatii. 

 Bill, more than one iui-h wide near tip; head, narrowly streaked and speckled 

 with brown ami dull white; speculum, metallic green; feet, orange red in 

 life; axillars, white. Shoveller Duck. 



Broad-bill. 



Spatula dypeata (female). 

 See page 50. 



