The Laysan duck (American Ornithologists Union 1998), also known as the Laysan teal, is a small (38.1 to 43.2 centimeters [15 to 17 inches] in length, weight 420 to 500 grams [14.8 to 17.6 ounces]), mostly chocolate-brown duck with contrasting bi-colored body feathers (USFWS 1982; Moulton and...