Nest: Ground; female builds; 1 brood per year. Nests at edges of ponds, lakes, or swamps, on rocks or grass hummocks out in the water. Nest made of sticks, mosses, and grasses lined with down.
Eggs: 4-7, white.
Incubation: 25-30 days; female incubates.
Fledging: 42-55 days; male and female teach young to feed.
Food: Aquatic plants, insects, seeds.
Habitat: Summers on lakes, marshes, winters on lakes, bays, fields, parks.
