Northern Prairie Wildlife Research Center
Body: Smallest of puddle ducks, about 3/4 pound up to 14 inches long. Grayish with much vermiculation. Chest tan with dark spots. Belly white. White vertical bar on sides. Head cinnamon with iridescent green eye-mask. Bill and feet grayish black. Wings: Mostly brown with iridescent green and black speculum. Voice: Twittering whistle. In Flight: Very small. Flight swift and erratic. Males show white belly opposed to dark belly on Blue-wing and Cinnamon Teal.
Ranging from mottled brown to near-winter coloration. Belly white. Head may have traces of green and cinnamon. Bill, feet and wings same as in winter.
Body: Mottled brown with white belly. Bill grayish black with small black spots. Feet and wings similar to male. Voice: High-pitched quack.