154 KEY TO THE WATER BIRDS OF FLORIDA. 
Famity ANATID4. Ducks, GEESE, AND SWANS. 
Supramity MERGIN/Z., Mereansers, Tooru-spittiep Ducks. 
/ 
Merganser americana. 
(1) Head greenish or blackish; bill narrow, with tooth-like serrations. 
Length, 26.50; Wing, 11; Tarsus, 2; Bill, 2.10. Un- 
der parts creamy white tinged with salmon color. Merganser americana. 
American [lerganser (male). 
Sheldrake. See page 212 
Length, 23; Wing, 9; Tarsus, 1.90; Bill, z.30. Breast 
brown streaked with black. Merganser serrator (male). 
Red-breasted Merganser. 
Sheldrake. See page 213 
Head brownish or grayish; bill narrow, with tooth-like serrations. 
Length, 24.50; Wing, 9.75, Tarsus, 1.90; Bill, -. 
Distance from nostril to tip of bill less than 
1.50. Merganser americana (female). 
American [lerganser. 
See page 212 
