Smew

The smew is the only living member of its genus. The adult drake, with its cracked-ice or panda look, is unmistakable and looks very black and white in flight. Females and immature males are grey with a chestnut forehead and crown, white chin and cheeks and black lores, often called redhead smew. It is 38 to 44cm long with a wingspan of 56 to 69cm, and the bill has a hooked tip and serrated edges to catch fish (Wikipedia, general species account).

It breeds in the northern taiga from northern Scandinavia east to Chukotka and needs trees for breeding, laying seven to eleven cream-coloured eggs in May, incubated by the female for 26 to 28 days. In winter it uses sheltered coasts or inland lakes, and a small number reach northern India. The sources opened do not mention Nepal.