Northern Prairie Wildlife Research Center
Body: Large duck, 1 1/2 - 2 1/2 pounds, 19 - 22 inches long. Dark appearance similar to Mottled Duck. Head and neck buffy with distinct streaking. Bill of male yellow to greenish yellow; female bill orange with black spots or blotches. Feet orange to reddish orange. Wings: Purplish blue to greenish blue speculum bordered with black and white bars on leading and trailing edges. White bar on leading edge sometimes indistinct or buffy. Voice: Female, loud quack; male, low raspy rink. In Flight: Similar to Black and Mottled ducks. Note: Restricted to Trans-Pecos of Texas, Western New Mexico and Eastern Arizona.