10 Miscellaneous Circular 13, U. S. Dept. of Agriculture. 
134. Southern Black Duck (Anas fulvigula). 
Range.—There are two subspecies of Anas fulvigula in the United States having the ranges defined below 
Florida Duck (Angas fulvigula fulvigula).—N orthwestern to southern Florida. 
Mottled Duck (Anas fulvigula miculosz).—Central southern United States. Resident in southern 
Texas and southern Louisiana; accidentalin Kansas and Colorado. 
VERNACULAR NAMES. 
So far as they are at present known the local names are separable for the two sub- 
species of the southern black duck but this probably is an accidental occurrence 
which future development or discovery of local names may nullify. 
In general use.—Black mallard, summer duck. 
In local use-—Black duck (Fla.); canard des isles (island duck), canard d’été 
(summer duck), canard noir d’été (summer black duck) (La.); English duck (Fla.); 
Trish mallard, island duck, island mallard, Mexican French duck, Mexican mallard, 
summer black duck, summer French duck, summer mallard (La.). 
Geographic index.—Fla., black duck, English duck; Za., canard des isles, canard 
d’été, canard noir d’été, Irish mallard, island duck, island mallard, Mexican French 
duck, Mexican mallard, summer black duck, summer French duck, summer mallard. 
FIG. 6.—Gadwall. 
BOOK NAMES. 
Dusky duck, Florida dusky duck, Louisiana dusky duck, southern black mallard, 
Texas duck, Texas dusky duck, Texas mottled duck. 
134.1. Falcated Teal (Eunetta falcata). ; 
Range.—Breeds from Siberia to Japan; in winter to China, India, and casually to Europe; has been 
collected once on the Pribilof Islands. 
Book name.—Falcated duck. 
135. Gadwall (Chaulelasmus streperus). (Fie. 6.) 
Range.—Nearly cosmopolitan. In North America breeds from southern British Columbia, central 
Alberta, and central Keewatin (N. W. T.) south to southern California, southern Colorado, northern 
Nebraska, and southern Wisconsin; winters from southern British Columbia, Arizona, Arkansas, southern 
Illinois, and North Carolina south to southern Lower California, central Mexico (Jalisco), and Florida; 
accidentalin Bermuda, Cuba, and Jamaica; rarein migration on the Atlantic coast of the Middle and New 
England States north to Newfoundland. 
VERNACULAR NAMES. 
In general use.-—Gadwall (also spelled gadwell, gadwale, sometimes shortened to 
gaddy); gray duck. 
