The term 'Canvasback Cousin' refers to three species of ducks: the TEAL (4 letters), the Scaup (5 letters), and the DUCK (4 letters). The TEAL is a small freshwater DUCK that is found in Europe, Asia, and North America. The Scaup is a medium-sized diving DUCK that is found in North America, Europe, and Asia. The DUCK is a large sea DUCK that is found in North America, Europe, and Asia. All three species are closely related and share similar characteristics.