Rich caramel-colored duck with long neck and legs. Look for blue-gray legs and bill and white stripes on sides. Easily distinguished from Black-bellied Whistling-Duck in flight because Fulvous has all-dark wings. Usually found in flocks in marshes, marshy ponds, and flooded rice fields. Active day and night. Frequently gives whistled calls. Males sound wheezier, females more nasal and squeaky.