Body: Medium-sized duck, up to 2 pounds, 18-22 inches long. Light cinnamon chest and lower neck with distinct black belly. Sides of head ashy gray. Bill bright pink. Long pinkish legs. Wings: Lesser, middle, greater and primary coverts white. Voice: Shrill whistling pe-che-che-ne. In Flight: Long legs extend behind body. Black belly evident. Note: Restricted to South Texas and Mexico.