76 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



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, on the Atlantic coast. 



Glaucionetta clangnla americana. American Golden Eye. Whistler. 



See No. 108. 



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

 white (female) ; very similar to preceding species, but slightly larger. 



Glaucionetta islandica. Barrow's Golden Eye. 

 See No. 109. 



Head, rufous brown ; crown, blackish ; breast, black ; 



lower back, ashy white, finely lined with black (maie) ; bill, very 

 different from that of Red-head. (S n e cut.") 



Aythya vallisneria. Canvas=back Duck. 

 See No. 104. 



Avtliya vallisneria. 



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.) Aythya vallisneria. Canvas=back Duck. 



See No. 104. 



Head, reddish brown; crown, not blackish; breast, black; 

 lower back, grayish, finely lined with black (male) ; bill, very differ- 

 ent from that of Canvas-back. (See cut.) 



Aythya americana. Red-headed Duck. 

 See No. 103. 



Aythya americana. 



Section 3. Hind toe, with well defined membraneous lobe 

 or flap ; belly, not white ; more or less white, or gray= 

 ish 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 perspiriUata. Surf Scoter. Skunk-head Coot. 



See No. 121. 



General .plumage, brown ; top of head and wings, dark; a spot of dull white at base of 

 bill and behind eye; no white on wings (female). 



Oidemia perspicillata. Surf Scoter. Skunk=head Coot. 



See No. 121. 



Top and sides of head, white; a patch of greenish in front of eye; throat, black; all 

 wing coverts, white (male). Eniconetta stelleri. Stellers' Duck. Stellers' Eider. 



See No. 114. 



