FAMILY ANATID^E. DUCKS, GEESE, AND SWANS. 61 



ORDER ANSERES. 



Lamellirostral Swimmers. 



FAMILY ANATID^E. 

 Ducks, Geese, and Swans. 



SUBFAMILY MERGIN/E. 

 Mergansers. 



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

 edges, and the tarsus, scutellate in front. 



* Group 1. Wing, from 6.50 to 8.50 inches long. 

 Section 1. Bill, narrow, with tooth=like serrations. 



Lophodytes cucullatus (male) . Lophodytes cucullatus. 



Head, brownish or grayish ; tarsus, less than 1.50; crest, small (female and immature). 



Lophodytes cucullatus. Hooded Merganser. 



See No. 88. 



Head, with black and white crest; tarsus, less than 1.50 (male). 



Lophodytes cucullatus. Hooded Herganser. 



See Xo. 88. 



* For directions for measurement, see page 9. 



