The term TYPE OF DIVING DUCK can be summarized as the SMEW, a four-letter species of duck. The SMEW is a small species of diving duck native to Eurasia and North America. It is a migratory species, breeding in northern Europe and Asia and wintering in southern Europe, Africa, and parts of Asia. The SMEW is a medium-sized duck, with a wingspan of around 50 cm and a body length of around 40 cm. It has a distinctive white head and neck, with a black back and wings. The SMEW is an excellent diver, able to submerge itself completely underwater in search of food.