Sexes alike. Male: breeding plumage chocolate-brown and white; goldenyellow on hind-neck. Dull brown and white; when not breeding, also has blackish necklace and lacks long tail; very long toes diagnostic. Solitary or in pairs when breeding; small flocks in winter; purely aquatic, moving on vegetation-covered pond surfaces; unusually long toes enable it to walk on the lightest of floating leaves; quite confiding on village ponds.