Ruddy Shelduck

The ruddy shelduck is a large, long-necked waterfowl, 58–70 cm long, with rich orange-brown body plumage and a much paler buff head. Black flight feathers contrast with bold white wing coverts, producing a striking pattern in flight. The bill and legs are black; breeding males acquire a narrow black neck ring, while females often show a whiter face. Its warm colour and goose-like stance are distinctive. (Wikipedia, ruddy shelduck account)

Ruddy shelducks breed around lakes, rivers, saline wetlands and mountain waters across Central Asia, then many move south for winter. They graze on grasses and seeds and also take aquatic plants, insects and other invertebrates. Pairs nest in cavities in cliffs, banks, trees or buildings, sometimes far from water, and lead the ducklings to feeding habitat after hatching. The opened account includes Mongolia in the breeding range but gives no specific Mongolian lake or local timetable. (Wikipedia, ruddy shelduck account)