ORDER ANSERES, 



Lamellirostral Swimmers. 



Family ANATID^E. Ducks, Geese and Swans. 



Subfamily MERGINAE. Mergansers. 



Fish=eating Ducks having narrow bills with tooth-like serrations on edges. 



Genus MERGANSER Brisson. 



iVIorg;uit?er amurii-amt^ (nuilo). 



Merg-iiiieer iinicricaiui;- (R'uialu). 



MERGANSER AMERICANUS (Cass). 

 American Merganser. 



SiTELDKAKE, GoOSANDER. 



Adult, male : Bill, red, long and narrow, \viUi tooth-like serrations ; head and neck, green- 

 ish black ; under parts, creamy white tinged with salmon color ; tail, gray; feet, red. 



Length, 26.50; wing, 11; tarsus, 2; bill, 2.10. 



Adult female : Upper throat, white ; breast and head, rufous brown: belly, white ; specu- 

 lum, white; feet, orange. 



Length, 24.,50; wing, 0.7.5; tarsus, 1.90; bill, 2. 



