218 KEY TO THE WATER BIRDS OF FLORIDA. 
Suscenus CHAULELASMUS Bonaparre. 
(Male.) 
ANAS STREPERA Zinn. 
Gadwall. 
Adult male: Head brownish finely streaked with black and dark brown; sides of the 
head pale brown mottled with black; neck and breast mottled (black and white), the feathers 
being black having a central white mark; under parts white (sometimes grayish white). Under 
tail coverts are black and upper tail coverts and rump are black; speculum gray and white ; 
the lesser wing coverts chestnut; bill black; feet orange. 
Length, 19.50; Wing, 10; Bill, 1.60. 
Adult female: Somewhat resembles the male but has the under wing coverts pure white 
and usually little or no chestnut on the lesser wing coverts. 
Length, 19; Wing, 10; Bill, 1.55. 
Range: North America, breeding usually in the interior in the northern 
part. It iscommon in Florida in winter where it is known as Creek Duck. 
The eggs are usually from nine to twelve and buffy white in color. The 
note of the male somewhat resembles the call of a deer or perhaps the 
squeak of a door; the female ‘‘ quacks” softly. 
