Common Name: Common Merganser
Scientific Name: Mergus merganser 
Nepali Name: Maditundak ( मणितुण्डक )
Size: Male – 58-72 cm
Location: Chitwan, Nepal

These widespread winter visitors are found below 3000m around rivers and lakes. The breeding males of these large ducks have a dark-green head with a lower white neck and breast. The female has chestnut-colored head with grey and cream underparts.

These birds feed on fish.  

Please feel free to comment below if the above species has been misidentified.